Gitea fork synchronization can expose private parent repository data

published 2026-07-03 4 mo ago modified 2026-10-25 14 d ago also GHSA-wrf9-r3h7-7x5v , GO-2026-6081 , EUVD-2026-41619

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 39%
public exploits: 0; none known

Gitea 1.26.2 allows fork synchronization to continue after a parent repository changes from public to private, exposing data to a fork that should no longer be authorized.

Patch / fix

fixed in 1 distros 2 links 2

go code.gitea.io/gitea 1.26.3

suse opensuse

govulncheck-vulndb SLES 16.0, SLES for SAP applications 16.0 0.0.20260727T201416-160000.1.1

suse advisories SUSE-SU-2026:23216-1 SUSE-SU-2026:23227-1

govulncheck-vulndb openSUSE Leap 16.0 0.0.20260727T201416-160000.1.1

opensuse advisories openSUSE-SU-2026:21551-1

github.com/go-gitea/gitea#38151 pull request
github.com/go-gitea/gitea/releases/tag/v1.26.3 release

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 4 mo ago (2026-07-07)

Exploit prediction

0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/go-gitea/gitea/security/advisories/GHSA-wrf9-r3h7-7x5v referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
GitHub	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
go	code.gitea.io/gitea	<1.26.3	1.26.3

Affected products

Gitea Gitea Open Source Git Server

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-284 Improper Access Control

References

github.com /go-gitea/gitea/pull/38151
patch, web
github.com /go-gitea/gitea/security/advisories/GHSA-wrf9-r3h7-7x5v
vendor-advisory, exploit, web, advisory
github.com /go-gitea/gitea/releases/tag/v1.26.3
release-notes, web
blog.gitea.com /release-of-1.26.3-and-1.26.4/
release-notes
nvd.nist.gov /vuln/detail/CVE-2026-24451
advisory
blog.gitea.com /release-of-1.26.3-and-1.26.4
web
github.com /go-gitea/gitea
package

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.

Summary