GHSA-MF7Q-R4RV-JV94 Crossplane's TOCTOU between cosign verification and image fetch in xpkg.CachedClient allows tag-based package install to bypass signature check

Summary Crossplane allows package signature verification to be configured via the ImageConfig mechanism. When enabled, the package manager uses cosign to verify that packages are correctly signed before pulling and installing them. When a package is installed using a tag reference e.g., a semanti...

BIT-COSIGN-2026-22703 Cosign verification accepts any valid Rekor entry under certain conditions

Cosign provides code signing and transparency for containers and binaries. Prior to versions 2.6.2 and 3.0.4, Cosign bundle can be crafted to successfully verify an artifact even if the embedded Rekor entry does not reference the artifact's digest, signature or public key. When verifying a Rekor...

CVE-2026-39395

Cosign provides code signing and transparency for containers and binaries. Prior to 3.0.6 and 2.6.3, cosign verify-blob-attestation may erroneously report a "Verified OK" result for attestations with malformed payloads or mismatched predicate types. For old-format bundles and detached signatures,...

Amazon Linux 2 : runfinch-finch, --advisory ALAS2DOCKER-2026-097 (ALASDOCKER-2026-097)

The version of runfinch-finch installed on the remote host is prior to 1.14.1-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2DOCKER-2026-097 advisory. net/http: memory exhaustion in Request.ParseForm CVE-2025-61726 archive/zip: denial of service when parsing...

CVE-2026-22703

Cosign provides code signing and transparency for containers and binaries. Prior to versions 2.6.2 and 3.0.4, Cosign bundle can be crafted to successfully verify an artifact even if the embedded Rekor entry does not reference the artifact's digest, signature or public key. When verifying a Rekor...

CVE-2026-22703 Cosign verification accepts any valid Rekor entry under certain conditions

Cosign provides code signing and transparency for containers and binaries. Prior to versions 2.6.2 and 3.0.4, Cosign bundle can be crafted to successfully verify an artifact even if the embedded Rekor entry does not reference the artifact's digest, signature or public key. When verifying a Rekor...

CVE-2026-22703 Cosign verification accepts any valid Rekor entry under certain conditions

Cosign provides code signing and transparency for containers and binaries. Prior to versions 2.6.2 and 3.0.4, Cosign bundle can be crafted to successfully verify an artifact even if the embedded Rekor entry does not reference the artifact's digest, signature or public key. When verifying a Rekor...

Improper Verification of Cryptographic Signature

Overview Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in the matchSignatures function in cosign.go, which does not check for subjectRegExp or issuerRegExp values during artifact signature verification. An attacker can deploy unauthorized...

CVE-2022-35929 False positive signature verification in cosign

cosign is a container signing and verification utility. In versions prior to 1.10.1 cosign can report a false positive if any attestation exists. cosign verify-attestation used with the --type flag will report a false positive verification when there is at least one attestation with a valid...