CVE-2026-96399 json
Gitea denial of service through external issue tracker patterns
published 2026-10-06 33 d ago modified 2026-10-14 26 d ago also BIT-gitea-2026-96399 , EUVD-2026-93921 , GHSA-mw6q-qj47-9g5q
- 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 28%
- public exploits
- 0
- none known
Summary
A repository's external issue tracker regular expression containing alternating capture groups could produce invalid slice indexes when Gitea rendered issue references, causing a runtime panic that terminated the Gitea process. A user who can edit a repository's external issue tracker settings could make any later rendering of matching content, such as viewing a README, crash the instance for all users.
Patch / fix
- bitnami gitea 28.0.0
- gitea gitea 28.0.0
- github.com/go-gitea/gitea#39354 pull request
- github.com/go-gitea/gitea/releases/tag/v28.0.0 release
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 32 d ago
Exploit prediction
0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).
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 |
| OSV | 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 |
|---|---|---|---|
| bitnami | gitea | <28.0.0 |
28.0.0 |
Affected products
- Gitea Gitea
Classification
References
-
github.com
/go-gitea/gitea/pull/39354
patch
-
github.com
/go-gitea/gitea/security/advisories/GHSA-mw6q-qj47-9g5q
vendor-advisory, advisory
-
blog.gitea.com
/release-of-28.0.0/
release-notes, article
-
github.com
/go-gitea/gitea/releases/tag/v28.0.0
release-notes, article
-
nvd.nist.gov
/vuln/detail/CVE-2026-96399
web
Sources
- CVE List CVE-2026-96399
- NVD CVE-2026-96399
- OSV BIT-gitea-2026-96399
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