Technology · Go
github.com/sigstore/cosign (Go) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 9 vulnerabilities in github.com/sigstore/cosign (Go): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-39395, was published on 7 April 2026.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 0
- Exploited in the wild
- 0
About github.com/sigstore/cosign (Go)
Container image signing and verification tool for Kubernetes and supply chain security.
Latest github.com/sigstore/cosign (Go) vulnerabilities
- CVE-2026-39395: Sigstore Cosign validation bypass in verify-blob-attestationmediumCVSS 4.3EPSS 0.3%
- CVE-2026-24122: Cosign considered signatures valid with expired intermediate certificates when transparency log verification is skippedlowCVSS 3.1EPSS 0.2%
- CVE-2026-22703: GO-2026-4309 - Cosign verification accepts any valid Rekor entry under certain conditions in github.com/sigstore/cosignlowCVSS 3.1EPSS 0.1%
- CVE-2024-29902: GO-2024-2718 - Cosign malicious attachments can cause system-wide denial of service in github.com/sigstore/cosignlowCVSS 3.1EPSS 0.7%
- CVE-2024-29903: GO-2024-2719 - Cosign malicious artifacts can cause machine-wide DoS in github.com/sigstore/cosignlowCVSS 3.1EPSS 0.9%
- CVE-2022-36056: GO-2022-0998 - Improper blob verification in github.com/sigstore/cosignlowCVSS 3.1EPSS 0.1%
- CVE-2023-46737: GO-2023-2181 - Denial of service attack from remote registry in github.com/sigstore/cosignlowCVSS 3.1EPSS 0.6%
- CVE-2022-23649: GO-2022-0326 - Improper certificate validation in github.com/sigstore/cosignlowCVSS 3.1EPSS 0.2%
- CVE-2022-35929: GO-2022-0758 - Improper verification of signature attestations in github.com/sigstore/cosignlowCVSS 3.1EPSS 0.7%
Most severe github.com/sigstore/cosign (Go) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-39395: Sigstore Cosign validation bypass in verify-blob-attestationmediumCVSS 4.3EPSS 0.3%
- CVE-2024-29903: GO-2024-2719 - Cosign malicious artifacts can cause machine-wide DoS in github.com/sigstore/cosignlowCVSS 3.1EPSS 0.9%
- CVE-2024-29902: GO-2024-2718 - Cosign malicious attachments can cause system-wide denial of service in github.com/sigstore/cosignlowCVSS 3.1EPSS 0.7%
- CVE-2022-35929: GO-2022-0758 - Improper verification of signature attestations in github.com/sigstore/cosignlowCVSS 3.1EPSS 0.7%
- CVE-2023-46737: GO-2023-2181 - Denial of service attack from remote registry in github.com/sigstore/cosignlowCVSS 3.1EPSS 0.6%
- CVE-2026-24122: Cosign considered signatures valid with expired intermediate certificates when transparency log verification is skippedlowCVSS 3.1EPSS 0.2%
- CVE-2022-23649: GO-2022-0326 - Improper certificate validation in github.com/sigstore/cosignlowCVSS 3.1EPSS 0.2%
- CVE-2022-36056: GO-2022-0998 - Improper blob verification in github.com/sigstore/cosignlowCVSS 3.1EPSS 0.1%
- CVE-2026-22703: GO-2026-4309 - Cosign verification accepts any valid Rekor entry under certain conditions in github.com/sigstore/cosignlowCVSS 3.1EPSS 0.1%
Vulnerabilities per week
Nothing was published in the last eight weeks. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many github.com/sigstore/cosign (Go) vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/github-com-sigstore-cosign)<a href="https://junglewise.ai/threats/technologies/github-com-sigstore-cosign"><img src="https://junglewise.ai/threats/technologies/github-com-sigstore-cosign/badge.svg" alt="github.com/sigstore/cosign (Go) vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/github-com-sigstore-cosign.json, and this page as text at https://junglewise.ai/threats/technologies/github-com-sigstore-cosign.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "github.com/sigstore/cosign (Go) vulnerabilities", https://junglewise.ai/threats/technologies/github-com-sigstore-cosign, 13 November 2026.