Description
When Gitea's web installer is reachable against a database that already contains users, such as after `INSTALL_LOCK` has been reset to `false`, submitting the install form with an administrator username matching an existing account issued an authenticated session for that account without verifying its password. If the account is an administrator, the session grants full administrative access, including changing the account's password. Databases with a single user also did not require the reinstall confirmation.
Published: 2026-10-06
Score: 8.1 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 07 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 07 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
First Time appeared Gitea
Gitea gitea
Vendors & Products Gitea
Gitea gitea

Tue, 06 Oct 2026 23:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-287

Tue, 06 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Description When Gitea's web installer is reachable against a database that already contains users, such as after `INSTALL_LOCK` has been reset to `false`, submitting the install form with an administrator username matching an existing account issued an authenticated session for that account without verifying its password. If the account is an administrator, the session grants full administrative access, including changing the account's password. Databases with a single user also did not require the reinstall confirmation.
Title Gitea installer authentication bypass for existing accounts
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Gitea

Published:

Updated: 2026-10-07T14:26:56.170Z

Reserved: 2026-10-04T21:59:53.548Z

Link: CVE-2026-96404

cve-icon Vulnrichment

Updated: 2026-10-07T14:26:18.879Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-06T20:17:35.500

Modified: 2026-10-07T15:17:58.800

Link: CVE-2026-96404

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-07T17:30:17Z

Weaknesses