# github.com/sigstore/cosign (Go) vulnerabilities

9 known vulnerabilities (1 high, 5 medium, 3 low), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Registry: https://pkg.go.dev/github.com/sigstore/cosign

## Advisories (9)

### [CVE-2026-39395](https://cve.now/CVE-2026-39395): Cosign's verify-blob-attestation reports false positive when payload parsing fails

- Severity: Medium 4.3
- Published: Apr 7, 2026
- Affected: from 3.0.0, fixed in 3.0.6; fixed in 2.6.3; all versions.

### [CVE-2026-24122](https://cve.now/CVE-2026-24122): Cosign Certificate Chain Expiry Validation Issue Allows Issuing Certificate Expiry to Be Overlooked

- Severity: Low 3.7
- Published: Feb 19, 2026
- Affected: fixed in 3.0.5; all versions.

### [CVE-2026-22703](https://cve.now/CVE-2026-22703): Cosign verification accepts any valid Rekor entry under certain conditions

- Severity: Medium 5.5
- Published: Jan 10, 2026
- Affected: all versions.

### [CVE-2024-29903](https://cve.now/CVE-2024-29903): Cosign vulnerable to machine-wide denial of service via malicious artifacts

- Severity: Medium 4.2
- Published: Apr 10, 2024
- Affected: all versions; through 2.2.3.

### [CVE-2024-29902](https://cve.now/CVE-2024-29902): Cosign vulnerable to system-wide denial of service via malicious attachments

- Severity: Medium 4.2
- Published: Apr 10, 2024
- Affected: through 2.2.3; all versions.

### [CVE-2023-46737](https://cve.now/CVE-2023-46737): Possible endless data attack from attacker-controlled registry in cosign

- Severity: Low 3.1
- Published: Nov 7, 2023
- Affected: all versions; fixed in 1.13.2.

### [CVE-2022-36056](https://cve.now/CVE-2022-36056): Vulnerabilities with blob verification in sigstore cosign

- Severity: Medium 5.5
- Published: Sep 14, 2022
- Affected: fixed in 1.12.0.

### [CVE-2022-35929](https://cve.now/CVE-2022-35929): False positive signature verification in cosign

- Severity: High 7.1
- Published: Aug 4, 2022
- Affected: fixed in 1.10.1.

### [CVE-2022-23649](https://cve.now/CVE-2022-23649): Improper Certificate Validation in Cosign

- Severity: Low 3.3
- Published: Feb 18, 2022
- Affected: fixed in 1.5.2.

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