# CVE-2026-58443 — Gitea Open Source Git Server

> As of 2026-08-14, CVE-2026-58443 is a CRITICAL-severity vulnerability in Gitea Open Source Git Server, CVSS v3.1 9.1, EPSS 0.5% (45.9th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-58443, most recently “Gitea CVE-2026-58443: Authorization Bypass in Pull Request Update API Enables Private Repo Access”.

**Last updated:** 2026-08-14

## What is CVE-2026-58443?

Public-only repository tokens can update private PR head branches

The record classifies CVE-2026-58443 under weakness class [CWE-863](https://intel.threadlinqs.com/cwe/CWE-863). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 68 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 9.1 — CRITICAL (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H`)
- **EPSS (FIRST):** 0.5% probability of exploitation in the next 30 days, higher than 45.9% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 8.4/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-13, last modified 2026-08-14

## Is CVE-2026-58443 being exploited?

Weaponised exploit code for CVE-2026-58443 is publicly available. 1 public proof-of-concept repository is tracked for this identifier. It currently carries a trending score of 40 in the Threadlinqs vulnerability feed.

- [trickest/cve](https://github.com/trickest/cve/blob/main/2026/CVE-2026-58443.md) (trickest)

## Affected products and versions

- [Gitea](https://intel.threadlinqs.com/vendors/gitea): Open Source Git Server

Affected software packages:

- `go:code.gitea.io/gitea` — patched in 1.27.0

## How to fix CVE-2026-58443

Fixed versions are recorded for 1 package: go:code.gitea.io/gitea 1.27.0. No vendor patch reference has been recorded for CVE-2026-58443 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-58443

1 tracked threat in the Threadlinqs corpus references CVE-2026-58443, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Gitea CVE-2026-58443: Authorization Bypass in Pull Request Update API Enables Private Repo Access](https://intel.threadlinqs.com/threat/TL-2026-1587) — CRITICAL · 2026-07-21

## Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-10-10.

**Vendor advisory and patch**

- [github.com — vendor advisory](https://github.com/go-gitea/gitea/security/advisories/GHSA-xxjv-752h-3vp2)
- [github.com — release notes](https://github.com/go-gitea/gitea/releases/tag/v1.27.0)
- [blog.gitea.com — release notes](https://blog.gitea.com/gitea-1.27.0-is-released/)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-58443
Full detection coverage and IOCs for threats exploiting CVE-2026-58443 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp