Medium 6.5Published Oct 6, 2026

CVE-2026-104633Gitea migration memory exhaustion from zero page size

Updated under an hour ago (2026-10-19 08:23 UTC)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for Gitea

Exploited in the last 30 days

When migrating a repository from another Gitea instance, Gitea used the page size reported in the source server's API settings to end its paginated downloads. A source that reported `max_response_items` as `0` made these loops run indefinitely and grow server memory until it was exhausted. Any user who can migrate repositories could point a migration at a server they control and cause a denial of service.

CVSS: 6.5 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-400, CWE-835
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Gitea
NVD analysis: Analyzed
Record last updated: Oct 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Gitea Gitea gitea:gitea (from the name)	through 28.0.0	CNA record
gitea gitea gitea:gitea	before 28.1.0	NVD

References

https://github.com/go-gitea/gitea/security/advisories/GHSA-jj5r-9rpc-8h6hvendor-advisory
https://github.com/go-gitea/gitea/pull/39501patch
https://github.com/go-gitea/gitea/pull/39507patch
https://blog.gitea.com/release-of-28.1.0/release-notes
https://github.com/go-gitea/gitea/releases/tag/v28.1.0release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.