tocsin

CVE-2026-39395

4 advisories.

Go/github.com/sigstore/cosign CVE-2026-39395: medium 4.3, EPSS 0.29%

Cosign's verify-blob-attestation reports false positive when payload parsing fails

Action: Upgrade github.com/sigstore/cosign to 2.6.3 or later.

go get github.com/sigstore/cosign@v3.0.6
go get github.com/sigstore/cosign@v2.6.3

Affected

introducedfixedlast affected
3.0.03.0.6-
02.6.3-

Fixed versions

3.0.62.6.3

Sources

CVE-2026-39395 · published · modified · JSON

Go/github.com/sigstore/cosign CVE-2026-39395: unknown, EPSS 0.29%

Cosign's verify-blob-attestation reports false positive when payload parsing fails in github.com/sigstore/cosign

Action: No fix published. Pin and monitor.

Affected

introducedfixedlast affected
0--

Fixed versions

No fixed version in the source.

Sources

CVE-2026-39395 · published · modified · JSON

Go/github.com/sigstore/cosign/v2 CVE-2026-39395: unknown, EPSS 0.29%

Cosign's verify-blob-attestation reports false positive when payload parsing fails in github.com/sigstore/cosign

Action: Upgrade github.com/sigstore/cosign/v2 to 2.6.3 or later.

go get github.com/sigstore/cosign/v2@v2.6.3

Affected

introducedfixedlast affected
02.6.3-

Fixed versions

2.6.3

Sources

CVE-2026-39395 · published · modified · JSON

Go/github.com/sigstore/cosign/v3 CVE-2026-39395: unknown, EPSS 0.29%

Cosign's verify-blob-attestation reports false positive when payload parsing fails in github.com/sigstore/cosign

Action: Upgrade github.com/sigstore/cosign/v3 to 3.0.6 or later.

go get github.com/sigstore/cosign/v3@v3.0.6

Affected

introducedfixedlast affected
3.0.03.0.6-

Fixed versions

3.0.6

Sources

CVE-2026-39395 · published · modified · JSON