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Fencer Vulns
critical 9.8

CVE-2020-28991 json

Improper Access Control in Gitea

published 2020-11-24 5 y ago modified 2026-09-08 2 mo ago also BIT-gitea-2020-28991 , EUVD-2024-1294 , GHSA-r7h7-chh4-5rvm

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

Gitea 0.9.99 through 1.12.x before 1.12.6 does not prevent a git protocol path that specifies a TCP port number and also contains newlines (with URL encoding) in ParseRemoteAddr in modules/auth/repo_form.go.

Patch / fix

  • go github.com/go-gitea/gitea 1.12.6
  • bitnami gitea 1.12.6
  • gitea gitea 1.12.6
  • gitea Arch Linux 1.12.6-1

arch linux advisories AVG-1299

Exploit prediction

1.74% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
OSV 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
go github.com/go-gitea/gitea
>=0.9.99, <1.12.6
1.12.6
bitnami gitea
>=0.9.99, <1.12.6
1.12.6

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.