Race Condition

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Race Condition through a race condition in the LDAP and OAuth authentication processes. An attacker can obtain administrative privileges by sending multiple concurrent authentication requests during the initi...

Open WebUI: LDAP and OAuth First-User Race Condition Allows Multiple Admin Accounts

Summary The LDAP and OAuth authentication flows use a TOCTOU Time-of-Check-Time-of-Use pattern for first-user admin role assignment. The regular signup handler signuphandler in auths.py, line 663 was explicitly patched to prevent this race with the comment "Insert with default role first to avoid...

GHSA-24C9-2M8Q-QHMH Open WebUI Vulnerable to SSRF via OAuth Profile Picture URL in _process_picture_url (oauth.py)

Summary A Server-Side Request Forgery SSRF vulnerability exists in processpictureurl in backend/openwebui/utils/oauth.py line 1338. The function fetches arbitrary URLs from OAuth picture claims without applying validateurl, allowing an attacker to force the server to make HTTP requests to interna...

Open WebUI Vulnerable to SSRF via OAuth Profile Picture URL in _process_picture_url (oauth.py)

Summary A Server-Side Request Forgery SSRF vulnerability exists in processpictureurl in backend/openwebui/utils/oauth.py line 1338. The function fetches arbitrary URLs from OAuth picture claims without applying validateurl, allowing an attacker to force the server to make HTTP requests to interna...

CVE-2026-41932

Vvveb before 1.0.8.3 contains a stored cross-site scripting vulnerability in the customer signup flow where the Signup::addUser controller copies raw POST username values into the displayname field before sanitization occurs. Attackers can submit HTML and script markup in the username field durin...

CVE-2026-41932

CVE-2026-41932 affects Vvveb prior to 1.0.8.3. The Signup::addUser() controller copies raw POST username values into the display_name field before sanitization, so HTML/script submitted in the username during signup is stripped in the username column but stored verbatim in display_name. When disp...

CVE-2026-41932

Vvveb before 1.0.8.3 contains a stored cross-site scripting vulnerability in the customer signup flow where the Signup::addUser controller copies raw POST username values into the displayname field before sanitization occurs. Attackers can submit HTML and script markup in the username field durin...

CVE-2026-41932

Vvveb before 1.0.8.3 contains a stored cross-site scripting vulnerability in the customer signup flow where the Signup::addUser controller copies raw POST username values into the displayname field before sanitization occurs. Attackers can submit HTML and script markup in the username field durin...

CVE-2026-41932 Vvveb < 1.0.8.3 Stored XSS via Signup Controller

Vvveb before 1.0.8.3 contains a stored cross-site scripting vulnerability in the customer signup flow where the Signup::addUser controller copies raw POST username values into the displayname field before sanitization occurs. Attackers can submit HTML and script markup in the username field durin...

CVE-2026-41932 Vvveb < 1.0.8.3 Stored XSS via Signup Controller

Vvveb before 1.0.8.3 contains a stored cross-site scripting vulnerability in the customer signup flow where the Signup::addUser controller copies raw POST username values into the displayname field before sanitization occurs. Attackers can submit HTML and script markup in the username field durin...

CVE-2026-41932 Vvveb < 1.0.8.3 Stored XSS via Signup Controller

Vvveb before 1.0.8.3 contains a stored cross-site scripting vulnerability in the customer signup flow where the Signup::addUser controller copies raw POST username values into the displayname field before sanitization occurs. Attackers can submit HTML and script markup in the username field durin...

EUVD-2026-30296

Vvveb before 1.0.8.3 contains a stored cross-site scripting vulnerability in the customer signup flow where the Signup::addUser controller copies raw POST username values into the displayname field before sanitization occurs. Attackers can submit HTML and script markup in the username field durin...

Vvveb 跨站脚本漏洞

Vvveb is a powerful and easy-to-use CMS developed by Givan’s developers, used for building websites, blogs, or e-commerce stores. Versions of Vvveb prior to 1.0.8.3 had a cross-site scripting vulnerability. This vulnerability stemmed from the Signup::addUser controller in the customer registratio...

PT-2026-40941

Vvveb before 1.0.8.3 contains a stored cross-site scripting vulnerability in the customer signup flow where the Signup::addUser controller copies raw POST username values into the display name field before sanitization occurs. Attackers can submit HTML and script markup in the username field duri...

CVE-2026-41932: Improper Neutralization of Input During Web Page Generation

Vvveb before 1.0.8.3 contains a stored cross-site scripting vulnerability in the customer signup flow where the Signup::addUser controller copies raw POST username values into the displayname field before sanitization occurs. Attackers can submit HTML and script markup in the username field durin...

CVE-2026-44166 Pocketbase: Account pre-hijacking via OAuth2 unverfied->verified autolinking upgrade

Pocketbase is an open source web backend written in go. Prior to 0.22.42 and 0.37.4, in some situations, if an attacker knows the email address of the victim they can create and link an unverified PocketBase user in advance by authenticating with one of the OAuth2 app providers, e.g. "A". When th...

CVE-2026-44166 Pocketbase: Account pre-hijacking via OAuth2 unverfied->verified autolinking upgrade

Pocketbase is an open source web backend written in go. Prior to 0.22.42 and 0.37.4, in some situations, if an attacker knows the email address of the victim they can create and link an unverified PocketBase user in advance by authenticating with one of the OAuth2 app providers, e.g. "A". When th...

EUVD-2026-28461

An authentication bypass vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to create a local user account, bypassing the configured external identity provider. When external authentication was enabled, the signup endpoint did not properly enforce th...

CVE-2026-6736 Authentication bypass vulnerability in GitHub Enterprise Server allowed creation of local user accounts bypassing the configured external identity provider

An authentication bypass vulnerability was identified in GitHub Enterprise Server that allowed an unauthenticated attacker to create a local user account, bypassing the configured external identity provider. When external authentication was enabled, the signup endpoint did not properly enforce th...

PT-2026-38588

Name of the Vulnerable Software and Affected Versions GitHub Enterprise Server versions prior to 3.21 Description An authentication bypass allows an unauthenticated attacker to create a local user account, bypassing the configured external identity provider. When external authentication is enable...