The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0777-1 advisory.

    Update to version 3.0.5 (jsc#SLE-23879).

    Security issues fixed:

    - CVE-2025-11065: github.com/go-viper/mapstructure/v2: sensitive Information leak in logs (bsc#1250620).
    - CVE-2025-58181: golang.org/x/crypto/ssh: invalidated number of mechanisms can cause unbounded memory     consumption       (bsc#1253913).
    - CVE-2026-22703: Verification accepts any valid Rekor entry under certain conditions (bsc#1256496).
    - CVE-2026-22772: github.com/sigstore/fulcio: bypass MetaIssuer URL validation bypass can trigger SSRF to     arbitrary       internal services (bsc#1256562).
    - CVE-2026-23991: github.com/theupdateframework/go-tuf/v2: denial of service due to invalid TUF metadata     JSON returned       by TUF repository (bsc#1257080).
    - CVE-2026-23992: github.com/theupdateframework/go-tuf/v2: unauthorized modification to TUF metadata files     due to a       compromised or misconfigured TUF repository (bsc#1257085).
    - CVE-2026-24122: improper validation of certificates that outlive expired CA certificates (bsc#1258542).
    - CVE-2026-24137: github.com/sigstore/sigstore/pkg/tuf: legacy TUF client allows for arbitrary file writes     with target       cache path traversal (bsc#1257139).
    - CVE-2026-26958: filippo.io/edwards25519: failure to initialize receiver in MultiScalarMult can produce     invalid results       and lead to undefined behavior (bsc#1258612).

    Other updates and bugfixes:

    * 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)
    * 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)

    - Update to version 3.0.4:

    * 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)

    - 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)
    * 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)

    - 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)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - filippo.io/edwards25519 is a Go library implementing the edwards25519 elliptic curve with APIs for     building cryptographic primitives. In versions 1.1.0 and earlier, MultiScalarMult produces invalid results     or undefined behavior if the receiver is not the identity point. If (*Point).MultiScalarMult is called on     an initialized point that is not the identity point, it returns an incorrect result. If the method is     called on an uninitialized point, the behavior is undefined. In particular, if the receiver is the zero     value, MultiScalarMult returns an invalid point that compares Equal to every other point. Note that     MultiScalarMult is a rarely used, advanced API. For example, users who depend on filippo.io/edwards25519     only through github.com/go-sql-driver/mysql are not affected. This issue has been fixed in version 1.1.1.
    (CVE-2026-26958)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Published	Updated	Severity
301024	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : cosign (SUSE-SU-2026:0777-1)	Nessus	SuSE Local Security Checks	3/6/2026	3/6/2026	medium
299681	Linux Distros Unpatched Vulnerability : CVE-2026-26958	Nessus	Misc.	2/20/2026	4/29/2026	medium

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