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EUVD-2026-271023

2026-10-16T01:30:25.623095+00:00

EUVD-2026-271023

fkie_cve-2025-64175

2026-10-16T01:30:25.623126+00:00

Gogs is an open source self-hosted Git service. In version 0.13.3 and prior, Gogs’ 2FA recovery code validation does not scope codes by user, enabling cross-account bypass. If an attacker knows a victim’s username and password, they can use any unused recovery code (e.g., from their own account) to bypass the victim’s 2FA. This enables full account takeover and renders 2FA ineffective in all environments where it's enabled.. This issue has been patched in versions 0.13.4 and 0.14.0+dev.

GHSA-p6x6-9mx6-26wj — Gogs Vulnerable to 2FA Bypass via Recovery Code

2026-10-16T01:30:25.623171+00:00

Affected: Go: gogs.io/gogs

Contact OpenAI Security Research at outbounddisclosures@openai.com to engage on this report. See PDF report for easier reading.

Security Advisory: 2FA Bypass via Recovery Code Vulnerability Type: 2FA Authentication Bypass Affected Software: GOGS Severity: High Date: Aug 5, 2025 Discoverer: OpenAI Security Research Summary Gogs’ 2FA recovery code validation does not scope codes by user, enabling cross-account bypass. If an attacker knows a victim’s username and password, they can use [Security Advisory_ 2FA Bypass via Recovery Code - Google Docs.pdf](https://github.com/user-attachments/files/21643266/Security.Advisory_.2FA.Bypass.via.Recovery.Code.-.Google.Docs.pdf) any unused recovery code (e.g., from their own account) to bypass the victim’s 2FA. This enables full account takeover and renders 2FA ineffective in all environments where it's enabled. Affected Versions Software: [Gogs](https://github.com/gogs/gogs/tree/main) Confirmed Version(s): All versions with 2FA support Likely Affected: All versions since introduction of UseRecoveryCode logic Introduced Commit: [a617d52374e937db0edacfba2a26bdd14a05538e](https://github.com/gogs/gogs/commit/a617d52374e937db0edacfba2a26bdd14a05538e) Commit: a617d52374e937db0edacfba2a26bdd14a05538e Author: Joe Chen Date: Apr 5, 2017 Description: 2fa: initial support

Vulnerability Details The function UseRecoveryCode in internal/database/two_factor.go fails to check that the recovery code belongs to the authenticating user. Instead, it…

WID-SEC-W-2026-0338 — Gogs: Mehrere Schwachstellen

2026-10-16T01:30:25.623312+00:00

Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Gogs ausnutzen, um Sicherheitsmaßnahmen zu umgehen, Cross-Site-Scripting-Angriffe durchzuführen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.