Description
When OpenID sign-in is enabled, Gitea processes unauthenticated assertion parameters and sends an HTTP POST request to the caller-supplied OpenID provider endpoint during verification. An attacker controls the destination and much of the form body, allowing interaction with internal HTTP services reachable from the Gitea server. The response is not returned to the attacker, so the issue is blind SSRF; its impact depends on the services and network addresses the server can reach.
Published: 2026-10-14
Score: n/a
EPSS: n/a
KEV: No
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Remediation

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History

Wed, 14 Oct 2026 15:00:00 +0000

Type Values Removed Values Added
Description When OpenID sign-in is enabled, Gitea processes unauthenticated assertion parameters and sends an HTTP POST request to the caller-supplied OpenID provider endpoint during verification. An attacker controls the destination and much of the form body, allowing interaction with internal HTTP services reachable from the Gitea server. The response is not returned to the attacker, so the issue is blind SSRF; its impact depends on the services and network addresses the server can reach.
Title Gitea blind SSRF through OpenID assertion verification
Weaknesses CWE-918
References

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Gitea

Published:

Updated: 2026-10-14T14:38:10.532Z

Reserved: 2026-08-24T20:45:09.301Z

Link: CVE-2026-78231

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-14T15:17:25.533

Modified: 2026-10-14T16:04:39.483

Link: CVE-2026-78231

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses