* Tue Jul 07 2026 dmueller@suse.com
- update to 3.1.1 (bsc#1267044,
CVE-2026-25680,CVE-2026-42502,
CVE-2026-27136,CVE-2026-25681,CVE-2026-42506,
bsc#1266049, CVE-2026-39827, CVE-2026-39828, CVE-2026-39829,
CVE-2026-39830, CVE-2026-39831, CVE-2026-39832, CVE-2026-39833,
CVE-2026-39834, CVE-2026-39835, CVE-2026-42508, CVE-2026-46595,
CVE-2026-46597, CVE-2026-46598,
bsc#1261811, CVE-2026-33815):
* This release deprecates a number of flags related to
verification material input for trust root material, as well
as the bundle format, standardized across Sigstore SDKs,
which is now the default output and input for signing and
verifying respectively. You may continue to use the
deprecated flags with Cosign v3.x releases. The deprecated
flags will be removed in a future Cosign v4 release.
* This release also updates the signing path for logging to
Rekor v2. DSSE attestations will be logged as hashed entries,
using the DSSE's pre-auth encoding (PAE). This should unblock
developers who want to upload large signed DSSEs such as
SBOMs.
* Initialize PKCS11 slots Before Getting Token Info in
* Sign exclusively via sigstore-go in
* bundle create: Prevent IgnoreTlog when bundle contains SET in
* Require bundle output or registry upload in
* fix(load): pass NameOptions to name.ParseReference in
* fix: honor --digestAlg when hashing a blob in verify-blob-
attestation in https://github.com/sigstore/cosign/pull/4813
* Deprecate Flags for v4: Certificates in
* Deprecate flags signing config in
* Deprecate flags bundle in
* Fix typo in map of verify command fields unsupported for new
bundle format in https://github.com/sigstore/cosign/pull/4853
* Add bundle upgrade command in
* Deprecate Flags for v4 in
* fix: close file descriptor leaked in
WriteSignedImageIndexImages loop in
* fix: use Header.Set to prevent duplicate Authorization on
retry in https://github.com/sigstore/cosign/pull/4870
* feat(cli): add Rekor v2 flag to cosign signing-config create
* Fix crash verifying timestamps when no timestamp was verified
* Deprecate Flags for v4: OCI Referrers in
* Use the configured Target Repository more consistently in
* fix: check HTTP status code in LoadFileOrURL in
* Fix unsafe type assertion in Rego policy evaluation by in
* Fix Ed25519ph check to respect custom signing configs in
sign-blob in https://github.com/sigstore/cosign/pull/4880
* Enable initialize command output in conformance in
* verify: return TUF errors for new bundle trusted roots in
* Deprecate subcommands in
* Remove docstring references to deprecated flags in
* fix(verify): Attach detached certificates to static
signatures via wrapped verifier in
* fix(verify): copy CheckOpts inside VerifyNewBundle to fix
data race in https://github.com/sigstore/cosign/pull/4917
* Update sigstore-go to v1.2.0 in
* **Full Changelog**:
https://github.com/sigstore/cosign/compare/v3.0.6...v3.1.1
Version: 3.0.5-160000.1.1
* Sun Feb 22 2026 meissner@suse.com
- Update to version 3.0.5: (jsc#SLE-23879)
* CVE-2026-24122: Fixed improper validation of certificates that
outlive expired CA certificates (bsc#1258542)
* CVE-2026-26958: Fixed filippo.io/edwards25519: failure to initialize
receiver in MultiScalarMult can produce invalid results and lead to
undefined behavior (bsc#1258612)
* CVE-2026-24137: Fixed github.com/sigstore/sigstore/pkg/tuf: legacy
TUF client allows for arbitrary file writes with target cache path
traversal (bsc#1257139)
* CVE-2026-22772: Fixed github.com/sigstore/fulcio: bypass MetaIssuer
URL validation bypass can trigger SSRF to arbitrary internal services
(bsc#1256562)
* CVE-2026-23991: Fixed github.com/theupdateframework/go-tuf/v2: denial
of service due to invalid TUF metadata JSON returned by TUF repository
(bsc#1257080)
* CVE-2026-23992: Fixed github.com/theupdateframework/go-tuf/v2:
unauthorized modification to TUF metadata files due to a compromised
or misconfigured TUF repository (bsc#1257085)
* chore(deps): bump google.golang.org/api from 0.260.0 to 0.264.0 (#4679)
* chore(deps): bump github.com/sigstore/rekor-tiles/v2 from 2.0.1 to 2.1.0 (#4670)
* chore(deps): bump filippo.io/edwards25519 from 1.1.0 to 1.1.1 (#4712)
* chore(deps): bump gitlab.com/gitlab-org/api/client-go (#4680)
* chore(deps): bump the gomod group across 1 directory with 4 updates (#4702)
* chore(deps): bump the actions group with 3 updates (#4703)
* update golang builder to use go1.25.7 (#4687)
* update golangci-lint to v2.8.x (#4688)
* Fix typo in CLI help (#4701)
* Support DSSE signing conformance test (#4685)
* chore(deps): bump the actions group across 1 directory with 8 updates (#4689)
* Deprecate rekor-entry-type flag (#4691)
* Deprecate cosign triangulate (#4676)
* Deprecate cosign copy (#4681)
* Enforce TSA requirement for Rekor v2, Fuclio signing (#4683)
* chore(deps): bump github.com/theupdateframework/go-tuf/v2 (#4668)
* chore(deps): bump golang from 1.25.5 to 1.25.6 in the all group (#4673)
* Automatically require signed timestamp with Rekor v2 entries (#4666)
* Fix syntax issue in conformance test, update nightly (#4664)
* Add mTLS support for TSA client connections when signing with a signing config (#4620)
* fix: avoid panic on malformed tlog entry body (#4652)
* Verify validity of chain rather than just certificate (#4663)
* Allow --local-image with --new-bundle-format for v2 and v3 signatures (#4626)
* chore(deps): bump the gomod group across 1 directory with 3 updates (#4662)
* Bump sigstore/sigstore to resolve GHSA (#4660)
* Gracefully fail if bundle payload body is not a string (#4648)
* fix: avoid panic on malformed replace payload (#4653)
* chore(deps): bump github.com/sigstore/rekor from 1.4.3 to 1.5.0 (#4659)
* fix: avoid panic on malformed attestation payload (#4651)
* fix: avoid panic on malformed tlog entries (#4649)
* Update conformance to latest
* docs(cosign): clarify RFC3161 revocation semantics (#4642)
* Add empty predicate to cosign sign when payload type is application/vnd.in-toto+json (#4635)
* chore(deps): bump github.com/sigstore/fulcio from 1.8.4 to 1.8.5 (#4637)
* Add origin key for ctfe trusted root
* Add changelog updates for v3.0.4 and v2.6.2 (#4625)
* Wed Feb 11 2026 meissner@suse.com
- Update to version 3.0.4:
* CVE-2025-11065: Fixed github.com/go-viper/mapstructure/v2: sensitive
Information leak in logs (bsc#1250620)
* CVE-2026-22703: Fixed that cosign verification accepts any valid
Rekor entry under certain conditions (bsc#1256496)
* Fix bundle verify path for old bundle/trusted root (#4623)
* chore(deps): bump gitlab.com/gitlab-org/api/client-go (#4616)
* chore(deps): bump cuelang.org/go in the gomod group (#4615)
* Optimize cosign tree performance by caching digest resolution (#4612)
* Don't require a trusted root to verify offline with a key (#4613)
* Support default services for trusted-root and signing-config creation (#4592)
* chore(deps): bump gitlab.com/gitlab-org/api/client-go (#4602)
* chore(deps): bump github.com/sigstore/sigstore-go (#4578)
* chore(deps): bump github.com/buildkite/agent/v3 from 3.114.1 to 3.115.2 (#4601)
* chore(deps): bump google.golang.org/api from 0.257.0 to 0.258.0 (#4611)
* chore(deps): bump k8s.io/client-go from 0.34.3 to 0.35.0 (#4604)
* chore(deps): bump actions/upload-artifact from 5.0.0 to 6.0.0 (#4588)
* chore(deps): bump golang.org/x/oauth2 from 0.33.0 to 0.34.0 (#4586)
* chore(deps): bump the gomod group with 5 updates (#4599)
* chore(deps): bump github.com/open-policy-agent/opa from 1.10.1 to 1.12.1 (#4600)
* chore(deps): bump golang.org/x/term from 0.37.0 to 0.38.0 (#4584)
* chore(deps): bump the actions group with 3 updates (#4587)
* chore(deps): bump actions/cache from 4.3.0 to 5.0.1 (#4589)
* chore(deps): bump the gomod group with 9 updates (#4577)
* Wed Dec 10 2025 meissner@suse.com
- Update to version 3.0.3:
* 4554: Closes 4554 - Add warning when --output* is used (#4556)
* chore(deps): bump golangci/golangci-lint-action from 8.0.0 to 9.1.0 (#4545)
* chore(deps): bump github.com/buildkite/agent/v3 from 3.111.0 to 3.113.0 (#4542)
* chore(deps): bump github.com/awslabs/amazon-ecr-credential-helper/ecr-login (#4543)
* chore(deps): bump actions/checkout from 5.0.0 to 6.0.0 (#4546)
* chore(deps): bump the actions group with 4 updates (#4544)
* chore(deps): bump the gomod group across 1 directory with 5 updates (#4567)
* chore(deps): bump golang from 1.25.4 to 1.25.5 in the all group (#4568)
* update builder to use go1.25.5 (#4566)
* Protobuf bundle support for subcommand `clean` (#4539)
* Add staging flag to initialize with staging TUF metadata
* update slack invite link (#4560)
* Updating sign-blob to also support signing with a certificate (#4547)
* Bump sigstore library dependencies (#4532)
* Protobuf bundle support for subcommands `save` and `load` (#4538)
* Fix cert attachment for new bundle with signing config
* Fix OCI verification with local cert - old bundle
* chore(deps): bump github.com/sigstore/fulcio from 1.7.1 to 1.8.1 (#4519)
* chore(deps): bump golang.org/x/crypto in /test/fakeoidc (#4535)
* chore(deps): bump golang.org/x/crypto from 0.43.0 to 0.45.0 (#4536)
* CVE-2025-58181: Fixed golang.org/x/crypto/ssh: invalidated number
of mechanisms can cause unbounded memory consumption (bsc#1253913)
* update go builder and cosign (#4529)
* chore(deps): bump the gomod group across 1 directory with 7 updates (#4528)
* chore(deps): bump sigstore/cosign-installer from 3.10.0 to 4.0.0 (#4478)
* chore(deps): bump gitlab.com/gitlab-org/api/client-go (#4520)
* chore(deps): bump golang from 1.25.3 to 1.25.4 in the all group (#4515)
* chore(deps): bump golang.org/x/oauth2 from 0.32.0 to 0.33.0 (#4518)
* chore(deps): bump cuelang.org/go from 0.14.2 to 0.15.0 (#4524)
* chore(deps): bump github.com/open-policy-agent/opa from 1.9.0 to 1.10.1 (#4521)
* chore(deps): bump actions/upload-artifact from 4.6.2 to 5.0.0 (#4502)
* chore(deps): bump the actions group across 1 directory with 2 updates (#4516)
* chore(deps): bump github.com/buildkite/agent/v3 from 3.110.0 to 3.111.0 (#4523)
* chore(deps): bump github.com/theupdateframework/go-tuf/v2 (#4522)
* Deprecate tlog-upload flag (#4458)
* fix: Use signal context for `sign` cli package.
* update offline verification directions (#4526)
* Fix signing/verifying annotations for new bundle
* Add support to download and attach for protobuf bundles (#4477)
* Add --signing-algorithm flag (#3497)
* Refactor signcommon bundle helpers
* Add --bundle and fix --upload for new bundle
* Pass insecure registry flags through to referrers
* chore(deps): bump github.com/buildkite/agent/v3 from 3.108.0 to 3.109.1 (#4483)
* Add protobuf bundle support for tree subcommand (#4491)
* Remove stale embed import (#4492)
* Support multiple container identities
* chore(deps): bump gitlab.com/gitlab-org/api/client-go (#4484)
* chore(deps): bump chainguard-dev/actions in the actions group (#4480)
* chore(deps): bump github.com/sigstore/rekor-tiles/v2 (#4485)
* chore(deps): bump golang.org/x/crypto from 0.42.0 to 0.43.0 (#4486)
* chore(deps): bump cuelang.org/go in the gomod group (#4479)
* upgrade OSS-Fuzz build tooling (#4487)
* Fix segfault when no attestations are found (#4472)
* Use overridden repository for new bundle format (#4473)
* update go to 1.25.3 (#4471)
* Remove --out flag from `cosign initialize` (#4462)
* chore(deps): bump the actions group with 2 updates (#4460)
* Deprecate offline flag (#4457)
* Deduplicate code in sign/attest* and verify* commands (#4449)
* Cache signing config when calling initialize (#4456)
* Update changelog for v3.0.2 (#4455)
* chore(deps): bump google.golang.org/api from 0.250.0 to 0.251.0
* chore(deps): bump gitlab.com/gitlab-org/api/client-go
* chore(deps): bump the actions group with 3 updates
* chore(deps): bump github.com/buildkite/agent/v3 from 3.107.2 to 3.108.0
* choose different signature filename for KMS-signed release signatures (#4448)
* chore(deps): bump github.com/go-jose/go-jose/v4 (#4451)
* Update rekor-tiles version path
* update CL for v3.0.1 release (#4447)
* update goreleaser config for v3.0.0 release (#4446)
* Create changelog for v3.0.0 (#4440)
* Fetch service URLs from the TUF PGI signing config by default (#4428)
* Create changelog for v2.6.1 (#4439)
* chore(deps): bump google.golang.org/api from 0.249.0 to 0.250.0 (#4432)
* chore(deps): bump the gomod group with 2 updates (#4429)
* chore(deps): bump github.com/open-policy-agent/opa from 1.8.0 to 1.9.0 (#4433)
* chore(deps): bump the actions group with 3 updates (#4434)
* chore(deps): bump github.com/go-openapi/swag from 0.24.1 to 0.25.1 (#4435)
* chore(deps): bump gitlab.com/gitlab-org/api/client-go (#4436)
* chore(deps): bump github.com/go-openapi/runtime from 0.28.0 to 0.29.0 (#4437)
* Bump module version to v3 for Cosign v3.0 (#4427)
* Move sigstore-conformance back to tagged release (#4425)
* Bump sigstore-go to v1.1.3 (#4423)
* Partially populate the output of cosign verify when working with new bundles (#4416)
* chore(deps): bump gitlab.com/gitlab-org/api/client-go (#4419)
* chore(deps): bump github.com/theupdateframework/go-tuf/v2 (#4418)
* chore(deps): bump github.com/buildkite/agent/v3 from 3.105.0 to 3.107.0 (#4420)
* chore(deps): bump chainguard-dev/actions in the actions group (#4421)
* bump go builder to use 1.25.1 and cosign (#4417)
* Bump sigstore-go for more precise user agents (#4413)
* chore(deps): bump github.com/spf13/viper from 1.20.1 to 1.21.0 (#4408)
* chore(deps): bump the actions group with 2 updates (#4407)
* chore(deps): bump gitlab.com/gitlab-org/api/client-go (#4410)
* chore(deps): bump github.com/buildkite/agent/v3 from 3.104.0 to 3.105.0 (#4411)
* Default to using the new protobuf format (#4318)
* Thu Sep 18 2025 meissner@suse.com
- Update to version 2.6.0:
- Require exclusively a SigningConfig or service URLs when signing (#4403)
- Add a terminal spinner while signing with sigstore-go (#4402)
- Bump sigstore-go, support alternative hash algorithms with keys (#4386)
- Add support for SigningConfig in sign/attest (#4371)
- Support self-managed keys when signing with sigstore-go (#4368)
- Remove SHA256 assumption in sign-blob/verify-blob (#4050)
- introduce dockerfile to pin the go version to decouple go version from go.mod (#4369)
- refactor: extract function to write referrer attestations (#4357)
- Break import cycle with e2e build tag (#4370)
- Update conformance test binary for signing config (#4367)
- update builder image to use go1.25 (#4366)
- Don't load content from TUF if trusted root path is specified (#4347)
- Don't require timestamps when verifying with a key (#4337)
- Fixes to cosign sign / verify for the new bundle format (#4346)
- update builder to use go1.24.6 (#4334)
- bump golangci-lint to v2.3.x (#4333)
- Have cosign sign support bundle format (#4316)
- Add support for SigningConfig for sign-blob/attest-blob, support Rekor v2 (#4319)
- Verify subject with bundle only when checking claims (#4320)
- Add to `attest-blob` the ability to supply a complete in-toto statement, and add to `verify-blob-attestation` the ability to verify with just a digest (#4306)
Version: 2.5.3-160000.1.2
* Fri Jul 18 2025 meissner@suse.com
- Update to version 2.5.3 (jsc#SLE-23879)
- Add signing-config create command (#4280)
- Allow multiple services to be specified for trusted-root create (#4285)
- force when copying the latest image to overwrite (#4298)
- Fix cert verification logic for trusted-root/SCTs (#4294)
- Fix lint error for types package (#4295)
- feat: Add OCI 1.1+ experimental support to tree (#4205)
- Add validity period end for trusted-root create (#4271)
- avoid double-loading trustedroot from file (#4264)
- Update to 2.5.2:
- Do not load trusted root when CT env key is set
- docs: improve doc for --no-upload option (#4206)
- Update to 2.5.1:
* Features
- Add Rekor v2 support for trusted-root create (#4242)
- Add baseUrl and Uri to trusted-root create command
- Upgrade to TUF v2 client with trusted root
- Don't verify SCT for a private PKI cert (#4225)
- Bump TSA library to relax EKU chain validation rules (#4219)
* Bug Fixes
- Bump sigstore-go to pick up log index=0 fix (#4162)
- remove unused recursive flag on attest command (#4187)
* Docs
- Fix indentation in verify-blob cmd examples (#4160)
* GO-2025-3660/ CVE-2025-46569: Fixed OPA server Data API HTTP path injection of Rego (bsc#1246725)
* Wed May 28 2025 meissner@suse.com
- switch to go1.24, enable fips build
* Sun Apr 13 2025 meissner@suse.com
- Update to version 2.5.0:
* Update sigstore-go to pick up bug fixes (#4150)
* Update golangci-lint to v2, update golangci-lint-action (#4143)
* Feat/non filename completions (#4115)
* update builder to use go1.24.1 (#4116)
* Add support for new bundle specification for attesting/verifying OCI image attestations (#3889)
* Remove cert log line (#4113)
* cmd/cosign/cli: fix typo in ignoreTLogMessage (#4111)
* bump to latest scaffolding release for testing (#4099)
* increase 2e2_test docker compose tiemout to 180s (#4091)
* Fix replace with compliant image mediatype (#4077)
* Add TSA certificate related flags and fields for cosign attest (#4079)
- Security issues fixed:
- CVE-2024-6104: cosign: hashicorp/go-retryablehttp: url might write sensitive information to log file (bsc#1227031)
- CVE-2024-51744: cosign: github.com/golang-jwt/jwt/v4: Bad documentation of error handling in ParseWithClaims can lead to potentially dangerous situations in golang-jwt (bsc#1232985)
- CVE-2025-27144: cosign: github.com/go-jose/go-jose/v4,github.com/go-jose/go-jose/v3: Go JOSE's Parsing Vulnerable to Denial of Service (bsc#1237682)
- CVE-2025-22870: cosign: golang.org/x/net/proxy: proxy bypass using IPv6 zone IDs (bsc#1238693)
- CVE-2025-22868: cosign: golang.org/x/oauth2/jws: Unexpected memory consumption during token parsing in golang.org/x/oauth2 (bsc#1239204)
- CVE-2025-22869: cosign: golang.org/x/crypto/ssh: Denial of Service in the Key Exchange of golang.org/x/crypto/ssh (bsc#1239337)
* Thu Feb 20 2025 meissner@suse.com
- Update to version 2.4.3:
* Enable fetching signatures without remote get. (#4047)
* Bump sigstore/sigstore to support KMS plugins (#4073)
* sort properly Go imports (#4071)
* sync comment with parameter name in function signature (#4063)
* fix go imports order to be alphabetical (#4062)
* fix comment typo and imports order (#4061)
* Feat/file flag completion improvements (#4028)
* Udpate builder to use go1.23.6 (#4052)
* Refactor verifyNewBundle into library function (#4013)
* fix parsing error in --only for cosign copy (#4049)
* Fix codeowners syntax, add dep-maintainers (#4046)
* Wed Feb 05 2025 meissner@suse.com
- Update to version 2.4.2:
- Updated open-policy-agent to 1.1.0 library (#4036)
- Note that only Rego v0 policies are supported at this time
- Add UseSignedTimestamps to CheckOpts, refactor TSA options (#4006)
- Add support for verifying root checksum in cosign initialize (#3953)
- Detect if user supplied a valid protobuf bundle (#3931)
- Add a log message if user doesn't provide --trusted-root (#3933)
- Support mTLS towards container registry (#3922)
- Add bundle create helper command (#3901)
- Add trusted-root create helper command (#3876)
Bug Fixes:
- fix: set tls config while retaining other fields from default http transport (#4007)
- policy fuzzer: ignore known panics (#3993)
- Fix for multiple WithRemote options (#3982)
- Add nightly conformance test workflow (#3979)
- Fix copy --only for signatures + update/align docs (#3904)
- use "osc service mr" to update
* Wed Oct 02 2024 meissner@suse.com
- update to 2.4.0 (jsc#SLE-23879)
- Add new bundle support to verify-blob and verify-blob-attestation (#3796)
- Adding protobuf bundle support to sign-blob and attest-blob (#3752)
- Bump sigstore/sigstore to support email_verified as string or boolean (#3819)
- Conformance testing for cosign (#3806)
- move incremental builds per commit to GHCR instead of GCR (#3808)
- Add support for recording creation timestamp for cosign attest (#3797)
- Include SCT verification failure details in error message (#3799)
* Tue Aug 20 2024 sarah.kriesch@opensuse.org
- Set CGO_ENABLED=1 for fixing s390x failed build
* Wed Jul 24 2024 meissner@suse.com
- update to 2.3.0 (jsc#SLE-23879)
* Features
- Add PayloadProvider interface to decouple AttestationToPayloadJSON from oci.Signature interface (#3693)
- add registry options to cosign save (#3645)
- Add debug providers command. (#3728)
- Make config layers in ociremote mountable (#3741)
- adds tsa cert chain check for env var or tuf targets. (#3600)
- add --ca-roots and --ca-intermediates flags to 'cosign verify' (#3464)
- add handling of keyless verification for all verify commands (#3761)
* Bug Fixes
- fix: close attestationFile (#3679)
- Set bundleVerified to true after Rekor verification (Resolves #3740) (#3745)
* Documentation
- Document ImportKeyPair and LoadPrivateKey functions in pkg/cosign (#3776)
* Fri May 31 2024 opensuse_buildservice@ojkastl.de
- add completion subpackages (bash, fish, zsh)
* Mon Apr 15 2024 meissner@suse.com
- updated to 2.2.4 (jsc#SLE-23879)
* Bug Fixes
* Fixes for GHSA-88jx-383q-w4qc and GHSA-95pr-fxf5-86gv (#3661)
- CVE-2024-29902: Malicious attachments can cause system-wide denial of service (bsc#1222835)
- CVE-2024-29903: Malicious artifects can cause machine-wide denial of service (bsc#1222837)
* ErrNoSignaturesFound should be used when there is no signature attached to an image. (#3526)
* fix semgrep issues for dgryski.semgrep-go ruleset (#3541)
* Honor creation timestamp for signatures again (#3549)
* Features
* Adds Support for Fulcio Client Credentials Flow, and Argument to Set Flow Explicitly (#3578)
* Documentation
* add oci bundle spec (#3622)
* Correct help text of triangulate cmd (#3551)
* Correct help text of verify-attestation policy argument (#3527)
* feat: add OVHcloud MPR registry tested with cosign (#3639)