CVE-2026-45156

Nextcloud is an open source content collaboration platform. From versions 0.3.0 to before 3.1.0, 5.0.0 to before 5.1.0, and 6.0.0 to before 6.4.0, a missing signature verification in User OIDC allowed a malicious ID4me authority to identify as any user. This issue has been patched in versions...

Shibboleth OIDC OP <3.0.4 - Server-Side Request Forgery

The Shibboleth Identity Provider OIDC OP plugin before 3.0.4 is vulnerable to server-side request forgery SSRF due to insufficient restriction of the requesturi parameter, which allows attackers to interact with arbitrary third-party HTTP services. id: CVE-2022-24129 info: name: Shibboleth OIDC O...

CVE-2026-45156

Nextcloud is an open source content collaboration platform. From versions 0.3.0 to before 3.1.0, 5.0.0 to before 5.1.0, and 6.0.0 to before 6.4.0, a missing signature verification in User OIDC allowed a malicious ID4me authority to identify as any user. This issue has been patched in versions...

CVE-2026-45278 Nextcloud: Open Redirect in user_oidc login flow via protocol-relative URL bypass

Nextcloud is an open source content collaboration platform. From version 6.1.0 to before version 8.2.2, an attacker can craft links that would redirect users to another website, when the victim uses the attackers link to log in via user OIDC. This issue has been patched in version 8.2.2...

CVE-2026-45278 Nextcloud: Open Redirect in user_oidc login flow via protocol-relative URL bypass

Nextcloud is an open source content collaboration platform. From version 6.1.0 to before version 8.2.2, an attacker can craft links that would redirect users to another website, when the victim uses the attackers link to log in via user OIDC. This issue has been patched in version 8.2.2...

MAL-2026-5138 Malicious code in @redhat-cloud-services/frontend-components-utilities (npm)

Part of the "Mini Shai-Hulud" supply chain worm campaign that compromised the GitHub Actions OIDC trusted publisher shared by Red Hat Cloud Services npm packages. The attacker injected a preinstall hook into this and 31 other packages in the @redhat-cloud-services scope. The hook delivers a...

Malicious code in @redhat-cloud-services/config-manager-client (npm)

Part of the "Mini Shai-Hulud" supply chain worm campaign that compromised the GitHub Actions OIDC trusted publisher shared by Red Hat Cloud Services npm packages. The attacker injected a preinstall hook into this and 31 other packages in the @redhat-cloud-services scope. The hook delivers a...

Nextcloud user_oidc: Input validation error vulnerability

Nextcloud useroidc is an application developed by the German company Nextcloud. In versions 6.1.0 to 8.2.2, there was a vulnerability related to input validation errors. This vulnerability stemmed from improper redirection handling, which could allow attackers to create links that redirect users ...

MAL-2026-5144 Malicious code in @redhat-cloud-services/notifications-client (npm)

Part of the "Mini Shai-Hulud" supply chain worm campaign that compromised the GitHub Actions OIDC trusted publisher shared by Red Hat Cloud Services npm packages. The attacker injected a preinstall hook into this and 31 other packages in the @redhat-cloud-services scope. The hook delivers a...

MAL-2026-5145 Malicious code in @redhat-cloud-services/patch-client (npm)

Part of the "Mini Shai-Hulud" supply chain worm campaign that compromised the GitHub Actions OIDC trusted publisher shared by Red Hat Cloud Services npm packages. The attacker injected a preinstall hook into this and 31 other packages in the @redhat-cloud-services scope. The hook delivers a...

CVE-2026-9791 Keycloak-rhel9: organization data leak after feature disabled in keycloak

A flaw was found in Keycloak. An authenticated user with existing organization membership can exploit this flaw by accessing user-facing APIs, such as the account API or by requesting an OpenID Connect OIDC token with the 'organization' scope. This allows organization metadata to be disclosed in...

Symfony's OidcTokenHandler Accepts JWTs Missing aud/iss/exp Claims

Description OidcTokenHandler is Symfony's built-in access-token handler for OpenID Connect: it validates a bearer JWT and returns the authenticated user identity. It delegates claim validation to the web-token/jwt-checker library's ClaimCheckerManager. OidcTokenHandler::verifyClaims registers...

CVE-2026-45321

On 2026-05-11, between approximately 19:20 and 19:26 UTC, 84 malicious versions across 42 @tanstack/ packages were published to the npm registry. The publishes were authenticated via the legitimate GitHub Actions OIDC trusted-publisher binding for TanStack/router, but the publish workflow itself...

Security Bulletin: Security vulnerabilities have been found in IBM Verify Identity Access OIDC Provider

Summary Security vulnerabilities have been addresed in IBM Verify Identity Access OIDC Provider Vulnerability Details CVEID:CVE-2026-39883 DESCRIPTION: OpenTelemetry-Go is the Go implementation of OpenTelemetry. From 1.15.0 to 1.42.0, the fix for CVE-2026-24051 changed the Darwin ioreg command to...

Important: Red Hat Security Advisory: Red Hat build of Keycloak 26.4.12 Security Update

New Red Hat build of Keycloak 26.4.12 packages are available from the Customer Portal Red Hat build of Keycloak 26.4.12 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. Security...

Exploit for Improper Authentication in Litellm

CVE-2026-35030 — LiteLLM Authentication Bypass via OIDC Userin...

CVE-2026-8922

A flaw was found in Keycloak. When both realm-level and client-level notBefore revocation policies are configured, Keycloak's OpenID Connect OIDC Introspection feature fails to properly honor the realm-level policy. This allows tokens that should have been revoked to remain active, potentially...

Exploit for Embedded Malicious Code in Tanstack Tanstack\/Arktype-Adapter

TanStack Supply Chain Compromise - IOC Checker bash curl -...

CVE-2026-44428 MCP Registry: GitHub OIDC tokens replayable across registry deployments due to shared audience

The MCP Registry provides MCP clients with a list of MCP servers, like an app store for MCP servers. Prior to 1.7.6, the client-side and server-side GitHub OIDC flow is bound only to a global audience string, not to the specific registry instance being targeted. On the client side, the publisher...

EUVD-2026-30493

The MCP Registry provides MCP clients with a list of MCP servers, like an app store for MCP servers. Prior to 1.7.6, the client-side and server-side GitHub OIDC flow is bound only to a global audience string, not to the specific registry instance being targeted. On the client side, the publisher...