CVE-2026-27771

Gitea Composer package source links use insufficient permission checks

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.

Affected

Gitea · Gitea Open Source Git Server

CVSS v3.0 CNA

8.2 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

EPSS

1.39% chance of exploitation in the next 30 days, 72nd percentile

Nuclei

high · CWE-862

Published

2026-07-03

Updated

2026-07-07

Proof-of-concept exploits (2)

• portbuster1337/CVE-2026-2777120★ · 2026-05-27
• HORKimhab/CVE-2026-277710★ · 2026-09-05

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-27771.yaml

Security advisories

• advisories/GHSA-8qw8-rq86-9pc2

References

• CVE Record
• NVD entry

Related

• CVE-2026-20182
• CVE-2026-33137
• CVE-2026-33712
• CVE-2026-46376
• CVE-2026-52806