CVE-2026-73273 json
Gitea Maven checksum upload quota bypass and memory exhaustion
published 2026-10-14 25 d ago modified 2026-10-14 25 d ago also EUVD-2026-101103
- cvss
- 4.3
- 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 33%
- public exploits
- 0
- none known
Summary
Gitea's Maven upload handler reads checksum uploads entirely into memory and returns before enforcing package-size quotas. An authenticated user with package-publish permission can submit an oversized body to a checksum endpoint despite legitimate checksum values being at most 128 bytes. This bypasses the upload quota on that path and can exhaust server memory.
Patch / fix
- github.com/go-gitea/gitea#39028 pull request
- github.com/go-gitea/gitea#39031 pull request
- github.com/go-gitea/gitea/releases/tag/v1.27.3 release
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 25 d ago
Exploit prediction
0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
Affected products
- Gitea Gitea
Classification
- Weakness
-
- CWE-770 Allocation of Resources Without Limits or Throttling
References
-
github.com
/go-gitea/gitea/pull/39028
patch
-
github.com
/go-gitea/gitea/pull/39031
patch
-
github.com
/go-gitea/gitea/security/advisories/GHSA-5xcq-p92v-43rf
vendor-advisory
-
blog.gitea.com
/release-of-1.27.3/
release-notes
-
github.com
/go-gitea/gitea/releases/tag/v1.27.3
release-notes
Sources
- CVE List CVE-2026-73273
- NVD CVE-2026-73273
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.