Unbounded memory allocation via checksum upload quota bypass
Published Oct 14, 2026 · Updated Oct 14, 2026
Unbounded reads in Gitea 1.27.2 and earlier allow remote authenticated users to allocate server memory via Maven checksum uploads. The Maven UploadPackageFile handler buffers the checksum request body without a read limit and returns after digest comparison before enforcing package-size quotas. Maven package write access is required; the allocation is client-controlled, but a practical outage was not demonstrated.
Summary
What happened
Unbounded reads in Gitea 1.27.2 and earlier allow remote authenticated users to allocate server memory via Maven checksum uploads. The Maven UploadPackageFile handler buffers the checksum request body without a read limit and returns after digest comparison before enforcing package-size quotas. Maven package write access is required; the allocation is client-controlled, but a practical outage was not demonstrated.
The record
- CVE
- CVE-2026-73273
- Published
- Oct 14, 2026
- Updated
- Oct 14, 2026
- Vendor
- Gitea
- Product
- Gitea
- Classifications
- CWE-770, T1499.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 14, 2026CVE publishedPublication date reported by the CVE source.
- Oct 14, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=1.27.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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