CVE-2026-104633: When migrating a repository from another Gitea instance, Gitea used the page size reported in the source serve
CVE-2026-104633 is a medium-severity flaw (CVSS 6.5) affecting gitea. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Last updated 2026-10-13 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-104633?
gitea: upgrade to 28.1.0. Exact commands for each OS are on this page.
Is CVE-2026-104633 being exploited?
CVE-2026-104633 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-104633 affect?
CVE-2026-104633 affects gitea. Severity is medium (CVSS 6.5). 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 indefinit
How urgent is CVE-2026-104633?
Priority 31/100. No elevated risk signals yet.
Software pages
Related CVEs
- CVE-2026-101027 HIGH 7.7 UPGRADE When `[migrations] ALLOWED_DOMAINS` was configured, a hostname matching the allow list was accepted without ch
- CVE-2026-101029 MEDIUM 4.3 UPGRADE Gitea's repository migration and pull mirror egress checks could be bypassed with a hostname that returns mult
- CVE-2026-103059 CRITICAL 9.1 UPGRADE When Gitea's built-in SSH server is enabled (`START_SSH_SERVER = true`), the presented public key was looked u
- CVE-2026-103667 MEDIUM 5.4 UPGRADE Gitea's container registry served blob downloads with a `Content-Type` taken from the media type declared in p
- CVE-2026-103670 HIGH 7.5 UPGRADE When a Gitea Actions run was inserted, older runs in the same workflow-level concurrency group were cancelled