PatchTheCVECVE-2026-104636: Gitea validated the initial remote URL for push mirrors, wiki remote checks, and fetches of migrated pull requ
CVE-2026-104636 is a high-severity flaw (CVSS 7.5) affecting gitea. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Gitea validated the initial remote URL for push mirrors, wiki remote checks, and fetches of migrated pull request heads, but the subsequent raw Git operations followed HTTP redirects without revalidating the destination. A repository administrator using a policy-allowed endpoint that redirects could make Gitea's Git client send requests to an address that the outbound host policy would otherwise block. The impact depends on the configured policy
Why this priority
- High severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 83%) |
| CISA exploited list | No |
| Weakness | CWE-918 |
| Published | 2026-10-06 |
| Last modified | 2026-10-13 |
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-2026-104636?
gitea: upgrade to 28.0.0. Exact commands for each OS are on this page.
Is CVE-2026-104636 being exploited?
CVE-2026-104636 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-2026-104636 affect?
CVE-2026-104636 affects gitea. Severity is high (CVSS 7.5). Gitea validated the initial remote URL for push mirrors, wiki remote checks, and fetches of migrated pull request heads, but the subsequent raw Git operations followed HTTP redirects without revalidating the destination. A repository admini
How urgent is CVE-2026-104636?
Priority 36/100. High severity; Remotely exploitable, no login, no user action
Software pages
Git vulnerabilities · Gitea vulnerabilities
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