PT-2024-27821

Name of the Vulnerable Software and Affected Versions authentik versions prior to 2024.2.4 authentik versions prior to 2024.4.2 authentik versions prior to 2024.4.3 authentik versions prior to 2024.6.0 Description The authentik API-Access-Token mechanism can be exploited to gain admin user...

authentik Security Vulnerabilities

authentik is an open source identity provisioning application from authentik open source. A security vulnerability exists in authentik that stems from a failure to check access restrictions assigned to the application when using the OAuth2 device code flow...

CVE-2024-23647

Authentik is an open-source Identity Provider. There is a bug in our implementation of PKCE that allows an attacker to circumvent the protection that PKCE offers. PKCE adds the codechallenge parameter to the authorization request and adds the codeverifier parameter to the token request. Prior to...

CVE-2024-23647 PKCE downgrade attack in Authentik

Authentik is an open-source Identity Provider. There is a bug in our implementation of PKCE that allows an attacker to circumvent the protection that PKCE offers. PKCE adds the codechallenge parameter to the authorization request and adds the codeverifier parameter to the token request. Prior to...

CVE-2024-23647

Authentik (PKCE downgrade) vulnerability (CVE-2024-23647) exists due to a flaw in PKCE implementation: if the authorization request omits code_challenge, PKCE checks are skipped, enabling bypass of PKCE protections. Affected versions are before 2023.8.7 and 2023.10.7. Versions 2023.8.7 and 2023.1...

CVE-2024-23647 PKCE downgrade attack in Authentik

Authentik is an open-source Identity Provider. There is a bug in our implementation of PKCE that allows an attacker to circumvent the protection that PKCE offers. PKCE adds the codechallenge parameter to the authorization request and adds the codeverifier parameter to the token request. Prior to...

CVE-2024-23647 PKCE downgrade attack in Authentik

Authentik is an open-source Identity Provider. There is a bug in our implementation of PKCE that allows an attacker to circumvent the protection that PKCE offers. PKCE adds the codechallenge parameter to the authorization request and adds the codeverifier parameter to the token request. Prior to...

Authentication Bypass

Authentik is vulnerable to Authentication Bypass. The vulnerability is due to improper validation of the codechallenge parameter from the PKCE authorization request. This issue can be exploited by an attacker by removing the codechallenge parameter resulting in authentication downgrade...

authentik Authorization Issues Vulnerability

authentik is an open source identity provisioning application from authentik Open Source. An authorization issue vulnerability exists in Authentik versions prior to 2023.8.7 and 2023.10.7, which stems from a security issue in authentik's PKCE that allows an attacker to bypass the protections...

GHSA-MRX3-GXJX-HJQJ Authentik vulnerable to PKCE downgrade attack

Summary PKCE is a very important countermeasure in OAuth2 , both for public and confidential clients. It protects against CSRF attacks and code injection attacks. Because of this bug, an attacker can circumvent the protection PKCE offers. Patches authentik 2023.8.7 and 2023.10.7 fix this issue...

Authentik vulnerable to PKCE downgrade attack

Summary PKCE is a very important countermeasure in OAuth2 , both for public and confidential clients. It protects against CSRF attacks and code injection attacks. Because of this bug, an attacker can circumvent the protection PKCE offers. Patches authentik 2023.8.7 and 2023.10.7 fix this issue...

PT-2024-19998

Name of the Vulnerable Software and Affected Versions Authentik versions prior to 2023.8.7 Authentik versions prior to 2023.10.7 Description Authentik is an open-source Identity Provider with a bug in its implementation of PKCE, allowing an attacker to circumvent the protection that PKCE offers...

CVE-2024-21637

Authentik is an open-source Identity Provider. Authentik is a vulnerable to a reflected Cross-Site Scripting vulnerability via JavaScript-URIs in OpenID Connect flows with responsemode=formpost. This relatively user could use the described attacks to perform a privilege escalation. This...

Cross site scripting

Authentik is an open-source Identity Provider. Authentik is a vulnerable to a reflected Cross-Site Scripting vulnerability via JavaScript-URIs in OpenID Connect flows with responsemode=formpost. This relatively user could use the described attacks to perform a privilege escalation. This...

CVE-2024-21637

Authentik (open-source Identity Provider) is affected by a reflected XSS in OpenID Connect flows using JavaScript-URIs with response_mode=form_post. The issue targets the authentication redirect path (Redirect URI) and could be used to escalate privileges as described in CVE-2024-21637. The vulne...

CVE-2024-21637 XSS in Authentik via JavaScript-URI as Redirect URI and form_post Response Mode

Authentik is an open-source Identity Provider. Authentik is a vulnerable to a reflected Cross-Site Scripting vulnerability via JavaScript-URIs in OpenID Connect flows with responsemode=formpost. This relatively user could use the described attacks to perform a privilege escalation. This...

CVE-2024-21637 XSS in Authentik via JavaScript-URI as Redirect URI and form_post Response Mode

Authentik is an open-source Identity Provider. Authentik is a vulnerable to a reflected Cross-Site Scripting vulnerability via JavaScript-URIs in OpenID Connect flows with responsemode=formpost. This relatively user could use the described attacks to perform a privilege escalation. This...

CVE-2024-21637 XSS in Authentik via JavaScript-URI as Redirect URI and form_post Response Mode

Authentik is an open-source Identity Provider. Authentik is a vulnerable to a reflected Cross-Site Scripting vulnerability via JavaScript-URIs in OpenID Connect flows with responsemode=formpost. This relatively user could use the described attacks to perform a privilege escalation. This...

Authentik Cross-Site Scripting Vulnerability

authentik is an open source identity provisioning application from authentik open source. A cross-site scripting vulnerability exists in Authentik versions 2023.10.5 and earlier, 2023.8.5 and earlier, which stems from a Reflected Cross-Site Scripting XSS vulnerability in the component OpenID...

Authentication Bypass

authentik is vulnerable to authentication bypass due to an insufficient PKCE check. The vulnerability is caused by codeverifier step during the OAUTH initialisation flow. Authentik improperly accepts the token request when codeverifier is omitted, even when the flow was started with a...