# CVE-2026-39984: docker: github.com/sigstore/timestamp-authority/v2/pkg/verification: improper certificate validation can be

CVE-2026-39984 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2026-39984, released April 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-39984
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0010
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 15, 2026

## Description

github.com/sigstore/timestamp-authority/v2/pkg/verification: improper certificate validation can be

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | docker opensuse-leap 16.0 | 29.7.2_ce-160000.8.1 | [OPENSUSE-SU-2026:22158-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-22158-1.md) | Nov 7, 2026 |
| Linux | docker sles 15.6 | 29.4.0_ce-150000.253.1 | [SUSE-SU-2026:2692-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2692-1.md) | Jun 30, 2026 |
| Linux | docker sles 15.7 | 29.4.0_ce-150000.253.1 | [SUSE-SU-2026:2692-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2692-1.md) | Jun 30, 2026 |
| Linux | docker sles 16.0 | 29.4.0_ce-160000.7.1 | [SUSE-SU-2026:22367-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22367-1.md) | Jun 25, 2026 |
| Linux | golang-github-sigstore-timestamp-authority Debian 14 | 2.1.0-1 | [DEBIAN-CVE-2026-39984](https://patchblox.com/security/data/fix/linux/debian-cve-2026-39984.md) | Apr 15, 2026 |
| Linux | govulncheck-vulndb opensuse-leap 16.0 | 0.0.20260723T184607-160000.1.1 | [OPENSUSE-SU-2026:21483-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21483-1.md) | Jul 30, 2026 |
| Linux | nerdctl amzn 2023 | 2.2.2-1.amzn2023.0.1 | [ALAS2023-2026-1605](https://patchblox.com/security/data/fix/linux/alas2023-2026-1605.md) | Apr 27, 2026 |

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Data as of 2026-11-11T07:45:43Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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