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CVE-2026-73278

9.8 · CRITICAL

Gitea's OAuth2 and OpenID Connect sign-in paths do not require a WebAuthn challenge when WebAuthn is the account's only configured second factor.

Published Oct 6, 2026giteaCWE-287EPSS 0.47%

Overview

CVE-2026-73278 is a critical-severity vulnerability affecting gitea gitea. It was published on October 6, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Gitea's OAuth2 and OpenID Connect sign-in paths do not require a WebAuthn challenge when WebAuthn is the account's only configured second factor. A party able to authenticate through the affected external identity flow can obtain a full session without the passkey verification enforced during password login. One affected path can also persist an external identity link, extending the compromise beyond the initial session; accounts with TOTP configured are outside the reported WebAuthn-only scenario.

Remediation

Check the references section for vendor advisories and patches from gitea. Update gitea to the latest patched version. 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.

Affected products

VendorProductVersionsStatus
giteagitea>= 1.16.0, < 1.27.2Affected

References

Refblog.gitea.com/release-of-1.27.2/GitHubgithub.com/go-gitea/gitea/pull/38805GitHubgithub.com/go-gitea/gitea/pull/38810GitHubgithub.com/go-gitea/gitea/releases/tag/v1.27.2GitHubgithub.com/go-gitea/gitea/security/advisories/GHSA-92j2-6qcg-c28c

How CyberStrike helps

Frequently asked questions

What is CVE-2026-73278?

CVE-2026-73278 is a critical-severity vulnerability affecting gitea gitea. It was published on October 6, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-73278?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-73278?

Check the references section for vendor advisories and patches from gitea. Update gitea to the latest patched version. 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-2026-73278?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-73278 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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