Impact
A flaw in Gitea versions up to 1.26.2 allows remote attackers to perform server‑side request forgery by submitting webhook or migration requests containing URLs that bypass the allow‑list filter. The application blindly resolves and contacts these URLs, enabling attackers to reach internal addresses, exfiltrate data, or initiate denial‑of‑service conditions. This weakness is classified as CWE‑918.
Affected Systems
Gitea Open Source Git Server installations using any version through 1.26.2 are susceptible. Any deployment that exposes the webhook or migration APIs is at risk until the fix is applied.
Risk and Exploitability
The CVSS score of 9.6 classifies this issue as critical, though the EPSS score of less than 1% indicates a very low likelihood of exploitation in the current landscape. The vulnerability is not listed in the CISA KEV catalog, but that does not diminish the urgency of remediation. The expected attack path involves sending crafted webhook or migration requests from a remote host; the server will resolve the supplied URL and perform a request, potentially exposing internal services or causing service disruption.
OpenCVE Enrichment
Github GHSA