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CVE-2026-34966

7.6 · HIGH

Gitea prior to 1.27.0 contains a server-side request forgery vulnerability that allows authenticated attackers to bypass SSRF protections by exploiting HTTP fetch operations in migration and OAuth…

Published Aug 5, 2026CWE-918EPSS 0.39%

Overview

CVE-2026-34966 is a high-severity vulnerability. It was published on August 5, 2026 and has a CVSS 3.1 base score of 7.6 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.6, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Gitea prior to 1.27.0 contains a server-side request forgery vulnerability that allows authenticated attackers to bypass SSRF protections by exploiting HTTP fetch operations in migration and OAuth avatar code paths that use Go's default http.Get without a custom DialContext. Attackers can supply arbitrary URLs through release asset download URLs, pull-request patch URLs, or OAuth avatar endpoints to reach internal services, cloud instance-metadata endpoints, or read local files such as the application configuration containing database credentials and signing secrets, with exfiltrated content persisted as migration release assets for later retrieval.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/go-gitea/giteaGitHubgithub.com/go-gitea/gitea/commit/b969123b7fac51c88daab5cb64e5b2f4abd53288GitHubgithub.com/go-gitea/gitea/security/advisories/GHSA-2wm4-vwp6-v7xcRefwww.vulncheck.com/advisories/gitea-prior-to-ssrf-via-migration-uri-fetch-bypassGitHubgithub.com/go-gitea/gitea/security/advisories/GHSA-2wm4-vwp6-v7xc

How CyberStrike helps

Frequently asked questions

What is CVE-2026-34966?

CVE-2026-34966 is a high-severity vulnerability. It was published on August 5, 2026 and has a CVSS 3.1 base score of 7.6 (HIGH).

How severe is CVE-2026-34966?

This vulnerability has a CVSS 3.1 base score of 7.6, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-34966?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-34966?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-34966 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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