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Cosign

9 CVEs product

Monthly

CVE-2026-39395 Go MEDIUM PATCH GHSA This Month

Cosign verify-blob-attestation incorrectly validates attestation signatures and predicate types in versions before 3.0.6 and 2.6.3, allowing remote attackers to bypass integrity verification by submitting malformed attestations or mismatched predicate types that are falsely reported as verified. The vulnerability affects container and binary code signing workflows where attestation integrity is critical for supply chain security.

Authentication Bypass Cosign
NVD GitHub VulDB
CVSS 3.1
5.3
EPSS
0.0%
CVE-2026-24122 Go LOW POC PATCH Monitor

Cosign provides code signing and transparency for containers and binaries. [CVSS 3.7 LOW]

Authentication Bypass Cosign
NVD GitHub
CVSS 3.1
3.7
EPSS
0.0%
CVE-2026-22703 Go MEDIUM POC PATCH This Month

Cosign's bundle verification mechanism fails to properly validate that embedded Rekor entries reference the correct artifact digest, signature, and public key, allowing an attacker with a compromised signing identity to forge valid bundles and bypass transparency log verification. A malicious actor could exploit this to create counterfeit signatures that pass validation checks, affecting users relying on Cosign for container and binary code signing verification. Public exploit code exists for this vulnerability; patches are available in versions 2.6.2 and 3.0.4.

Authentication Bypass Cosign Red Hat Suse
NVD GitHub
CVSS 3.1
5.5
EPSS
0.0%
CVE-2024-29903 Go HIGH POC PATCH This Week

Cosign provides code signing and transparency for containers and binaries. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Denial Of Service Cosign
NVD GitHub
CVSS 3.1
7.5
EPSS
0.9%
CVE-2024-29902 Go MEDIUM PATCH This Month

Cosign provides code signing and transparency for containers and binaries. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. This Allocation of Resources Without Limits vulnerability could allow attackers to exhaust system resources through uncontrolled allocation.

Redis Denial Of Service Cosign
NVD GitHub
CVSS 3.1
5.9
EPSS
0.7%
CVE-2023-46737 Go MEDIUM POC PATCH This Month

Cosign is a sigstore signing tool for OCI containers. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Denial Of Service Cosign
NVD GitHub
CVSS 3.1
5.3
EPSS
0.6%
CVE-2022-36056 Go MEDIUM POC PATCH This Month

Cosign is a project under the sigstore organization which aims to make signatures invisible infrastructure. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available.

Information Disclosure Jwt Attack Cosign
NVD GitHub
CVSS 3.1
5.5
EPSS
0.1%
CVE-2022-35929 Go CRITICAL POC PATCH Act Now

cosign is a container signing and verification utility. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Information Disclosure Jwt Attack Cosign
NVD GitHub
CVSS 3.1
9.8
EPSS
0.6%
CVE-2022-23649 Go LOW PATCH Monitor

Cosign provides container signing, verification, and storage in an OCI registry for the sigstore project. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity.

Information Disclosure Cosign
NVD GitHub
CVSS 3.1
3.3
EPSS
0.2%
EPSS 0% CVSS 5.3
MEDIUM PATCH This Month

Cosign verify-blob-attestation incorrectly validates attestation signatures and predicate types in versions before 3.0.6 and 2.6.3, allowing remote attackers to bypass integrity verification by submitting malformed attestations or mismatched predicate types that are falsely reported as verified. The vulnerability affects container and binary code signing workflows where attestation integrity is critical for supply chain security.

Authentication Bypass Cosign
NVD GitHub VulDB
EPSS 0% CVSS 3.7
LOW POC PATCH Monitor

Cosign provides code signing and transparency for containers and binaries. [CVSS 3.7 LOW]

Authentication Bypass Cosign
NVD GitHub
EPSS 0% CVSS 5.5
MEDIUM POC PATCH This Month

Cosign's bundle verification mechanism fails to properly validate that embedded Rekor entries reference the correct artifact digest, signature, and public key, allowing an attacker with a compromised signing identity to forge valid bundles and bypass transparency log verification. A malicious actor could exploit this to create counterfeit signatures that pass validation checks, affecting users relying on Cosign for container and binary code signing verification. Public exploit code exists for this vulnerability; patches are available in versions 2.6.2 and 3.0.4.

Authentication Bypass Cosign Red Hat +1
NVD GitHub
EPSS 1% CVSS 7.5
HIGH POC PATCH This Week

Cosign provides code signing and transparency for containers and binaries. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Denial Of Service Cosign
NVD GitHub
EPSS 1% CVSS 5.9
MEDIUM PATCH This Month

Cosign provides code signing and transparency for containers and binaries. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. This Allocation of Resources Without Limits vulnerability could allow attackers to exhaust system resources through uncontrolled allocation.

Redis Denial Of Service Cosign
NVD GitHub
EPSS 1% CVSS 5.3
MEDIUM POC PATCH This Month

Cosign is a sigstore signing tool for OCI containers. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Denial Of Service Cosign
NVD GitHub
EPSS 0% CVSS 5.5
MEDIUM POC PATCH This Month

Cosign is a project under the sigstore organization which aims to make signatures invisible infrastructure. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available.

Information Disclosure Jwt Attack Cosign
NVD GitHub
EPSS 1% CVSS 9.8
CRITICAL POC PATCH Act Now

cosign is a container signing and verification utility. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Information Disclosure Jwt Attack Cosign
NVD GitHub
EPSS 0% CVSS 3.3
LOW PATCH Monitor

Cosign provides container signing, verification, and storage in an OCI registry for the sigstore project. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity.

Information Disclosure Cosign
NVD GitHub

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