---
title: "CVE-2026-58443: Gitea: Public-only repository tokens can update private PR head branches"
url: https://erroneo.us/security/cve/CVE-2026-58443/
description: "CVE-2026-58443 (code.gitea.io/gitea (Go)): Public-only repository tokens can update private PR head branches"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-08-13
date_modified: 2026-08-14
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-58443"
kev: false
cvss: 9.1
epss: 0.00579
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-58443: Gitea: Public-only repository tokens can update private PR head branches

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.6% , percentile 47: FIRST’s model estimates a 0.6% chance of exploitation activity in the next 30 days, higher than 47% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes code.gitea.io/gitea (Go) < 1.27.0, fixed in 1.27.0 . Check your lockfile, including transitive dependencies.

## What it is

Public-only repository tokens can update private PR head branches

## Affected packages

- Go `code.gitea.io/gitea` < 1.27.0 → fixed: 1.27.0

## Affected products (CVE record)

- Gitea Gitea Open Source Git Server: <= 1.26.4

## Severity

- CISA-ADP CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H`
- GitHub CVSS 3.1: 9.6 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable yes , technical impact partial .
- FIRST EPSS (model of 2026-10-21): 0.58% probability of exploitation activity in the next 30 days; percentile 47.

## Sources

- [GitHub Security Advisory](https://github.com/go-gitea/gitea/security/advisories/GHSA-xxjv-752h-3vp2)
- [Gitea v1.27.0 Release](https://github.com/go-gitea/gitea/releases/tag/v1.27.0)
- [Gitea v1.27.0 Release Blog Post](https://blog.gitea.com/gitea-1.27.0-is-released/)
- [GitHub Advisory GHSA-xxjv-752h-3vp2](https://github.com/advisories/GHSA-xxjv-752h-3vp2)
- [CVE.org record CVE-2026-58443](https://www.cve.org/CVERecord?id=CVE-2026-58443)
- [NVD entry CVE-2026-58443](https://nvd.nist.gov/vuln/detail/CVE-2026-58443)

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Source page: https://erroneo.us/security/cve/CVE-2026-58443/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt