# CVE-2026-49835: golang-github-sigstore-timestamp-authority: Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps

CVE-2026-49835 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2026-49835, released July 24, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-49835
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0074
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 17, 2026

## Description

Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps. Prior to 2.1.0, the global wrapMetrics middleware records raw HTTP request path r.URL.Path and raw HTTP request method r.Method as Prometheus labels for latency and request count metric vectors before routing, allowing an unauthenticated remote attacker to issue requests with random paths such as /api/v1/timestamp/<uuid> or random HTTP methods and create unbounded permanent time-series entries that exhaust memory. This issue is fixed in version 2.1.0.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | golang-github-sigstore-timestamp-authority Debian 14 | 2.1.0-1 | [DEBIAN-CVE-2026-49835](https://patchblox.com/security/data/fix/linux/debian-cve-2026-49835.md) | Jul 24, 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 | runfinch-finch amzn 2023 | 1.17.2-1.amzn2023.0.3 | [ALAS2023-2026-2023](https://patchblox.com/security/data/fix/linux/alas2023-2026-2023.md) | Aug 3, 2026 |

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Data as of 2026-11-08T13:06:02Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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