Description
go-tuf is a Go implementation of The Update Framework (TUF). Starting in version 2.0.0 and prior to version 2.3.1, a compromised or misconfigured TUF repository can have the configured value of signature thresholds set to 0, which effectively disables signature verification. This can lead to unauthorized modification to TUF metadata files is possible at rest, or during transit as no integrity checks are made. Version 2.3.1 fixes the issue. As a workaround, always make sure that the TUF metadata roles are configured with a threshold of at least 1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| theupdateframework | go-tuf | >= 2.0.0, < 2.3.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | golang-github-theupdateframework-go-tuf | 2.4.1+0.7.0-1 | — |
| Debian 13 | golang-github-theupdateframework-go-tuf | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | golang-github-theupdateframework-go-tuf | No fix yet | — |
| Ubuntu 26.04 LTS | golang-github-theupdateframework-go-tuf | No fix yet | — |
| Ubuntu 25.10 | golang-github-theupdateframework-go-tuf | No fix yet | — |
| Ubuntu 24.04 LTS | golang-github-theupdateframework-go-tuf | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | cosign | 3.0.5-150400.3.35.1 | SUSE-SU-2026:0777-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | cosign | 3.0.5-160000.1.1 | SUSE-SU-2026:20904-1 |
| SLES 16.0 | cosign | 3.0.5-160000.1.1 | SUSE-SU-2026:20904-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | cosign | 3.0.5-1.1 | openSUSE-SU-2026:10235-1 |
| openSUSE Leap 16.0 | cosign | 3.0.5-160000.1.1 | openSUSE-SU-2026:20386-1 |
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
| openSUSE Leap 15.6 | cosign | 3.0.5-150400.3.35.1 | SUSE-SU-2026:0777-1 |
| openSUSE Leap 15.6 | govulncheck-vulndb | 0.0.20260205T172317-150000.1.146.1 | SUSE-SU-2026:0757-1, SUSE-SU-2026:0403-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | gh | 2.62.0-13 | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | aactl | 0.4.12-r39 | — |
| Wolfi rolling | buildkitd | 0.27.0-r1 | — |
| Wolfi rolling | cosign | 3.0.4-r1 | — |
| Wolfi rolling | dockerd-29 | 29.2.0-r1 | — |
| Wolfi rolling | falcoctl | 0.12.1-r0 | — |
| Wolfi rolling | flux-source-controller | 1.7.4-r5 | — |
| Wolfi rolling | gh | 2.86.0-r0 | — |
| Wolfi rolling | gitsign +1 | 0.13.0-r7 | — |
| Wolfi rolling | goreleaser | 2.13.3-r1 | — |
| Wolfi rolling | ko | 0.18.1-r1 | — |
| Wolfi rolling | kubescape | 3.0.47-r1 | — |
| Wolfi rolling | kyverno-notation-aws | 1.1-r28 | — |
| Wolfi rolling | neuvector-sigstore-interface | 0_git20251212-r1 | — |
| Wolfi rolling | policy-controller +1 | 0.14.0-r0 | — |
| Wolfi rolling | ratify | 1.4.0-r9 | — |
| Wolfi rolling | rekor-cli +2 | 1.5.0-r0 | — |
| Wolfi rolling | sigstore-scaffolding-tuf-server | 0.7.31-r3 | — |
| Wolfi rolling | skaffold | 2.17.1-r1 | — |
| Wolfi rolling | slsa-verifier | 2.7.1-r6 | — |
| Wolfi rolling | spire-agent | 1.14.1-r0 | — |
| Wolfi rolling | tekton-chains | 0.26.0-r3 | — |
| Wolfi rolling | teleport-18.6 +2 | 18.6.8-r9 | — |
| Wolfi rolling | tflint | 0.60.0-r4 | — |
| Wolfi rolling | tkn | 0.43.0-r2 | — |
| Wolfi rolling | trivy | 0.68.2-r1 | — |
| Wolfi rolling | trivy-operator | 0.29.0-r6 | — |
| Wolfi rolling | vexctl | 0.4.1-r5 | — |
| Wolfi rolling | witness | 0.10.2-r0 | — |
| Wolfi rolling | zarf | 0.69.0-r1 | — |
| Wolfi rolling | zot | 2.1.13-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/theupdateframework/go-tuf/v2 | < 2.3.1 | 2.3.1 | GHSA-fphv-w9fq-2525 |
Advisories 7
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026
- SUSE-SU-2026:20904-1 Security update for cosign SUSE / openSUSE Security Updates · Apr 2, 2026
- openSUSE-SU-2026:20386-1 Security update for cosign SUSE / openSUSE Security Updates · Mar 26, 2026
- openSUSE-SU-2026:10235-1 cosign-3.0.5-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0403-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0777-1 Security update for cosign SUSE / openSUSE Security Updates · Mar 4, 2026
- SUSE-SU-2026:0757-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Mar 4, 2026