CVE-2026-58421 json
Unauthenticated ReDoS via CODEOWNERS pattern matching allows denial of service
published 4mo ago modified 17d ago also GHSA-v96j-25gv-g2w9 , GO-2026-6077 , EUVD-2026-41604
- 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 34%
- public exploits
- 0
- none known
Summary
Unauthenticated ReDoS via CODEOWNERS pattern matching allows denial of service
Patch / fix
- go code.gitea.io/gitea 1.26.4
- Gitea Gitea Open Source Git Server 1.26.2
- govulncheck-vulndb SLES 16.0, SLES for SAP applications 16.0 0.0.20260727T201416-160000.1.1
suse advisories SUSE-SU-2026:23216-1SUSE-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@ea35af1 commit
- github.com/go-gitea/gitea#38011 pull request
- github.com/go-gitea/gitea/releases/tag/v1.26.4 release
Is CVE-2026-58421 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 4mo ago
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-11).
Exploits and checks
- github.com https://github.com/go-gitea/gitea/security/advisories/GHSA-v96j-25gv-g2w9 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:N/I:N/A:H |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | code.gitea.io/gitea | <1.26.4 |
1.26.4 |
Affected products
- Gitea Gitea Open Source Git Server
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
github.com
/go-gitea/gitea/pull/38011
patch, web
-
github.com
/go-gitea/gitea/commit/ea35af1b68d57522c7686618bd61d3216d91589f
web
-
github.com
/go-gitea/gitea/security/advisories/GHSA-v96j-25gv-g2w9
vendor-advisory, exploit, web, advisory
-
github.com
/go-gitea/gitea/releases/tag/v1.26.4
release-notes, web
-
blog.gitea.com
/release-of-1.26.3-and-1.26.4/
release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2026-58421
advisory
-
blog.gitea.com
/release-of-1.26.3-and-1.26.4
web
-
github.com
/go-gitea/gitea
package
Sources
- CVE List CVE-2026-58421
- GitHub Advisory GHSA-v96j-25gv-g2w9
- NVD CVE-2026-58421
- OSV GO-2026-6077
Fencer Intel 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.