CVE-2026-18353

PIA's POST /v1/upload/sbom endpoint accepts a Bearer JWT and checks its unverified iss claim against an issuer allowlist using Python's urlparse before performing OIDC discovery with requests. Because urlparse and requests/urllib3 parse an authority string containing a backslash e.g...

CVE-2026-18353

PIA’s POST /v1/upload/sbom validates a Bearer JWT by checking the unverified iss against an issuer allowlist using urlparse, then performs OIDC discovery with requests. A backslash in the authority (e.g., https://[email protected]/) is parsed into different hostnames, enabling an attac...

CVE-2026-18353 Unauthenticated SSRF in PIA via OIDC issuer allowlist bypass

PIA's POST /v1/upload/sbom endpoint accepts a Bearer JWT and checks its unverified iss claim against an issuer allowlist using Python's urlparse before performing OIDC discovery with requests. Because urlparse and requests/urllib3 parse an authority string containing a backslash e.g...

CVE-2026-48058

Summary of CVE-2026-48058 (nebula-mesh) nebula-mesh (Slack Nebula mesh control plane) versions prior to 0.3.2 expose a cookie security flaw: internal/web/session.go and internal/web/oidc.go set HttpOnly and SameSite=Lax on cookies but omit the Secure attribute. A plaintext HTTP request to the ori...

DEBIAN-CVE-2026-54603

OAuth2 is a Ruby wrapper for the OAuth 2.0 and 2.1 authorization frameworks, including OpenID Connect OIDC. From 0.4.0 to 2.0.21, a protocol-relative redirect Location returned to OAuth2::Clientrequest overrides the request authority, so the bearer Authorization header is sent to an...

CVE-2026-54603

OAuth2 is a Ruby wrapper for the OAuth 2.0 and 2.1 authorization frameworks, including OpenID Connect OIDC. From 0.4.0 to 2.0.21, a protocol-relative redirect Location returned to OAuth2::Clientrequest overrides the request authority, so the bearer Authorization header is sent to an...

CVE-2026-54603

Summary (CVE-2026-54603) OAuth2 (Ruby) versions 0.4.0 through 2.0.21 leak credentials via protocol-relative redirects during the OAuth2::Client#request flow. When a 301/302/303/307 redirect’s Location header is protocol-relative (//host/...), the client’s base URL is overridden and the original A...

PT-2026-65537

OAuth2 is a Ruby wrapper for the OAuth 2.0 and 2.1 authorization frameworks, including OpenID Connect OIDC. From 0.4.0 to 2.0.21, a protocol-relative redirect Location returned to OAuth2::Clientrequest overrides the request authority, so the bearer Authorization header is sent to an...

BIT-OPENBAO-2026-33758 OpenBao has Reflected XSS in its OIDC authentication error message

OpenBao is an open source identity-based secrets management system. Prior to version 2.5.2, OpenBao installations that have an OIDC/JWT authentication method enabled and a role with callbackmode=direct configured are vulnerable to XSS via the errordescription parameter on the page for a failed...

BIT-OPENBAO-2026-33757 OpenBao lacks user confirmation for OIDC direct callback mode

OpenBao is an open source identity-based secrets management system. Prior to version 2.5.2, OpenBao does not prompt for user confirmation when logging in via JWT/OIDC and a role with callbackmode set to direct. This allows an attacker to start an authentication request and perform "remote phishin...

Keycloak 26.2 < 26.2.15 / 26.4 < 26.4.11 / 26.5 < 26.5.7 Multiple Vulnerabilities

Keycloak installed on the remote host is 26.2.x prior to 26.2.15, 26.4.x prior to 26.4.11, 26.5.x prior to 26.5.7 are affected by multiple vulnerabilities: - A privilege escalation flaw exists due to improper isolation in the SingleUseObjectProvider. An unauthenticated, remote attacker can forge...

PT-2026-65051

OpenBao is an open source identity-based secrets management system. Prior to version 2.5.2, OpenBao installations that have an OIDC/JWT authentication method enabled and a role with callback mode=direct configured are vulnerable to XSS via the error description parameter on the page for a failed...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication in the authentication process when handling OIDC subject identifiers due to the use of an accent-insensitive collation in the database. An attacker can gain unauthorized access to another user's account by...

PT-2026-64407

In epa4all, prior to version 2026-05-20, an attacker on the network path between epa4all and any backend ePA Aktensystem, Konnektor, IDP, TSS can present a self-signed TLS certificate and intercept the connection. For non-VAU connections Konnektor, IDP, this allows direct read and modification of...

GO-2026-5989 Unauthenticated OIDC login in nebula-mesh allows unbounded memory allocation in github.com/forgekeep/nebula-mesh

When OIDC is enabled, the login endpoint is reachable without authentication and is registered outside the rate-limited auth routes. Every request creates a fresh random OIDC state value and stores it in an in-memory map. An unauthenticated remote client can grow the state storage, bounded by...

CVE-2026-15612

Logto bypasses OIDC nonce validation when the nonce claim is absent from the idtoken, enabling replay of authentication tokens and weakening session-binding...

EUVD-2026-48304

Logto bypasses OIDC nonce validation when the nonce claim is absent from the idtoken, enabling replay of authentication tokens and weakening session-binding...

CVE-2026-15612 LOIDC nonce validation bypass

Logto bypasses OIDC nonce validation when the nonce claim is absent from the idtoken, enabling replay of authentication tokens and weakening session-binding...

PYSEC-2026-3476 LiteLLM: Local file read via request-supplied OIDC file references

Impact LiteLLM's /health/testconnection endpoint resolved request-supplied environment and OIDC file references in litellmparams. A proxy administrator, or another privileged caller with permission to test model connections, could cause LiteLLM to read files from the local filesystem via an...

CVE-2026-13089

OIDC::Lite versions through 0.12.1 for Perl allow ID Token signature verification bypass via a token-controlled algorithm allowlist in verify. When the caller does not pin an algorithm, OIDC::Lite::Model::IDToken::verify sets $self-alg$self-header-alg from the token's own header and then calls...