BIT-AUTHENTIK-2026-40166 authentik: Non-admin user can retrieve confidential OAuth client_secret via /api/v3/oauth2/access_tokens/

authentik is an open-source identity provider. In versions prior to 2025.12.5 and 2026.2.0 through 2026.2.2, authenticated non-admin users with at least one OAuth2 access token can retrieve the clientsecret of confidential OAuth2 providers they have previously authenticated against, exposing...

VMware Workspace ONE Access - Authentication Bypass

VMware Workspace ONE Access has two authentication bypass vulnerabilities CVE-2022-22955 & CVE-2022-22956 in the OAuth2 ACS framework. A malicious actor may bypass the authentication mechanism and execute any operation due to exposed endpoints in the authentication framework. id: CVE-2022-22956...

CVE-2026-44237

Summary: CVE-2026-44237 affects FreePBX before 17.0.8. The api module’s OAuth2 flow does not validate client credentials during token issuance; validateClient() in ClientRepository.php unconditionally returns true. This allows any party with a valid client_id to obtain OAuth2 access tokens withou...

EUVD-2026-32587

Budibase is an open-source low-code platform. Prior to 3.39.0, fetchToken in the OAuth2 SDK makes a POST to a builder-supplied URL with plain node-fetch, skipping the blacklist.isBlacklisted check that every other outbound fetch path in the codebase uses. The Joi schema for the OAuth2 URL has no...

CVE-2026-48153

Budibase: CVE-2026-48153 affects Budibase before 3.39.0. The OAuth2 SDK’s fetchToken makes a POST to a builder-supplied URL using plain node-fetch and bypasses the isBlacklisted outbound-fetch path check, and the OAuth2 URL Joi schema has no scheme/host restrictions. This enables SSRF to reach in...

free5GC 安全漏洞

free5GC is an open-source project for the 5th generation 5G mobile core network. Versions of free5GC prior to 4.2.2 contained security vulnerabilities. These vulnerabilities stemmed from the lack of inbound OAuth2/bearer-token authorization when the NEF module mounted the 3gpp-pfd-management API...

free5GC 安全漏洞

free5GC is an open-source project for the 5th generation 5G mobile core network. Versions of free5GC prior to 4.2.2 contained security vulnerabilities. These vulnerabilities stemmed from the lack of inbound OAuth2/bearer-token authorization when the NEF module mounted the nnef-oam routing group...

PT-2026-44064

Name of the Vulnerable Software and Affected Versions Budibase versions prior to 3.39.0 Description The fetchToken function in the OAuth2 SDK performs a POST request to a URL provided by the builder using node-fetch. This process bypasses the isBlacklisted check used by all other outbound fetch...

CVE-2026-40166

authentik is an open-source identity provider. In versions prior to 2025.12.5 and 2026.2.0-rc1 through 2026.2.2, authenticated non-admin users with at least one OAuth2 access token can retrieve the clientsecret of confidential OAuth2 providers they have previously authenticated against, exposing...

Authentication Bypass

github.com/oauth2-proxy/oauth2-proxy is vulnerable to an authentication bypass. The vulnerability is due to improper handling of health check User-Agent values in authrequest-style integrations when --ping-user-agent or --gcp-healthchecks is enabled, which allows an unauthenticated remote attacke...

SUSE CVE-2026-44166

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...

GHSA-3258-QMV8-FRP3 free5GC's SMF UPI management interface lacks auth middleware; unauthenticated topology read/write requests reach handlers

Summary free5GC's SMF mounts the UPI management route group without OAuth2/bearer-token authorization middleware. A network attacker who can reach SMF on the SBI can hit UPI endpoints with no Authorization header at all, and the requests reach the SMF business handlers. In the running Docker lab...

CVE-2026-42206

Roadiz is a polymorphic content management system based on a node system. Prior to versions 2.3.43, 2.5.45, 2.6.31, and 2.7.18, the roadiz/openid package generates an OIDC nonce in OAuth2LinkGenerator::generate and includes it in the authorization request sent to the identity provider, but never...

Kanidm has non-constant-time comparison of OAuth2 client_secret

Summary The kanidmd OAuth2 token-exchange /oauth2/token and token-introspection /oauth2/token/introspect endpoints compare the supplied clientsecret against the stored secret using Rust's PartialEq on String, which short-circuits on the first mismatching byte. This produces an observable timing...

Improper Authentication

Overview github.com/pocketbase/pocketbase/apis is a realtime backend in 1 file Affected versions of this package are vulnerable to Improper Authentication in the OAuth2 autolinking process. An attacker can gain unauthorized access to a victim's account by pre-registering an unverified user with t...

PocketBase vulnerable to account pre-hijacking via OAuth2 unverfied->verified autolinking upgrade

A pre-hijacking issue was discovered with the OAuth2 autolinking by Alardiians. 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 the...

PT-2026-37311

Name of the Vulnerable Software and Affected Versions Pocketbase versions prior to 0.22.42 Pocketbase versions prior to 0.37.4 Description An issue exists in the OAuth2 autolinking process where an attacker knowing a victim's email address can pre-create and link an unverified user by...

Astra Linux - уязвимость в curl

An improper authentication vulnerability exists in curl 7.33.0 to and including 7.82.0 which might allow reuse OAUTH2-authenticated connections without properly making sure that the connection was authenticated with the same credentials as set for this transfer. This affects SASL-enabled protocol...

[SECURITY] Fedora 44 Update: python-msal-1.36.0-1.fc44

The Microsoft Authentication Library for Python enables applications to integrate with the Microsoft identity platform. It allows you to sign in users or apps with Microsoft identities Azure AD, Microsoft Accounts and Azure AD B2C accounts and obtain tokens to call Microsoft APIs such as Microsof...