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...

EUVD-2026-42610

n8n: Cross-Issuer Token Exchange Account Binding via Subject-Only Identity Resolution...

Vulnerabilities handled in the n8n workflow automation platform

n8n has identified several vulnerabilities in its workflow automation platform. These vulnerabilities include: - An authorization issue where authenticated users can assign workflows to folders within projects to which they do not have access, due to insufficient validation of request payloads...

CVE-2026-59208

n8n is an open source workflow automation platform. Prior to 2.27.4 and from 2.28.0 prior to 2.28.1, n8n instances configured with more than one trusted token-exchange issuer resolved external identities to local accounts using only the JWT sub claim and ignored the iss claim, allowing an attacke...

PT-2026-56817

Name of the Vulnerable Software and Affected Versions n8n versions prior to 2.27.4 n8n versions 2.28.0 through 2.28.0 Description Instances configured with multiple trusted token-exchange issuers resolve external identities to local accounts using only the sub claim of the JSON Web Token JWT and...

CVE-2026-59096

Dapr Sentry's OIDC discovery endpoint derives the issuer and jwksuri of the /.well-known/openid-configuration document from the request Host, honoring an attacker-controlled X-Forwarded-Host header without validation when no allowed-hosts list is configured the default, and serves the document wi...

Apache Camel 4.15.0 < 4.18.0 Authentication Bypass (CVE-2026-23552)

The version of Apache Camel on the remote host is 4.15.0 prior to 4.18.0. It is, therefore, affected by an authentication bypass vulnerability: - The Camel-Keycloak KeycloakSecurityPolicy does not validate the iss issuer claim of JWT tokens against the configured realm. A token issued by one...

CVE-2024-47807

Jenkins OpenId Connect Authentication Plugin 4.354.v321ce67a1de8 and earlier does not check the iss Issuer claim of an ID Token, allowing attackers to subvert the authentication flow, potentially gaining administrator access to Jenkins...

Nextcloud: Issuer not verified from obtained token in user_oidc

The issuer verification in the useroidc app of Nextcloud did not properly validate the issuer of the obtained token, potentially allowing for a Man-in-the-Middle attack...