---
id: CVE-2026-27771
title: >-
  Gitea versions up to and including 1.26.1 have insufficient permission checks
  for Composer package source links, which can expose private or internal
  package source information.
summary: >-
  Gitea versions up to and including 1.26.1 have insufficient permission checks
  for Composer package source links, which can expose private or internal
  package source information.
severity: high
cvss: 8.2
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'
cwe:
  - CWE-862
published: '2026-07-03'
updated: '2026-07-03'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-27771'
references:
  - url: 'https://blog.gitea.com/release-of-1.26.2/'
    label: 88ee5874-cf24-4952-aea0-31affedb7ff2
  - url: 'https://github.com/go-gitea/gitea/pull/37610'
    label: 88ee5874-cf24-4952-aea0-31affedb7ff2
  - url: 'https://github.com/go-gitea/gitea/releases/tag/v1.26.2'
    label: 88ee5874-cf24-4952-aea0-31affedb7ff2
  - url: 'https://github.com/go-gitea/gitea/security/advisories/GHSA-8qw8-rq86-9pc2'
    label: 88ee5874-cf24-4952-aea0-31affedb7ff2
tags:
  - nvd
  - exploit-available
epss: 0.01393
epssPercentile: 0.71193
ingestedAt: '2026-07-04T14:56:14.493Z'
exploits:
  github: 2
  githubRepos:
    - 'https://github.com/portbuster1337/CVE-2026-27771'
    - 'https://github.com/HORKimhab/CVE-2026-27771'
  nuclei:
    - CVE-2026-27771
  checkedAt: '2026-09-24T07:53:01.460Z'
exploitAvailable: true
---

## Overview

Gitea versions up to and including 1.26.1 have insufficient permission checks for Composer package source links, which can expose private or internal package source information.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.