CVE-2026-33496
ORY Oathkeeper is an Identity & Access Proxy (IAP) and Access Control Decision API that authorizes HTTP requests based on sets of Access Rules.
Published Mar 26, 2026 · updated Jun 17, 2026 · ory oathkeeper
ORY Oathkeeper is an Identity & Access Proxy (IAP) and Access Control Decision API that authorizes HTTP requests based on sets of Access Rules. Versions prior to 26.2.0 are vulnerable to authentication bypass due to cache key confusion. The authenticator cache does not distinguish tokens that were validated with different introspection URLs. An attacker can therefore legitimately use a token to prime the cache, and subsequently use the same token for rules that use a different introspection server. Ory Oathkeeper has to be configured with multiple authenticator servers, each accepting different tokens. The authenticators also must be configured to use caching. An attacker has to have a way to gain a valid token for one of the configured introspection servers. Starting in version 26.2.0, Ory Oathkeeper includes the introspection server URL in the cache key, preventing confusion of tokens. Update to the patched version of Ory Oathkeeper. If that is not immediately possible, disable caching for authenticators.
Code
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Timeline
Detection, updates, and resolution for this record.
Mar 26, 2026 · NIST NVD
Detected
ORY Oathkeeper is an Identity & Access Proxy (IAP) and Access Control Decision API that authorizes HTTP requests based on sets of Access Rules. Versions prior to 26.2.0 are vulnerable to authentication bypass due to cache key confusion. The authenticator cache does not distinguish tokens that were validated with different introspection URLs. An attacker can therefore legitimately use a token to pr
Jun 17, 2026 · NIST NVD
Updated
ORY Oathkeeper is an Identity & Access Proxy (IAP) and Access Control Decision API that authorizes HTTP requests based on sets of Access Rules. Versions prior to 26.2.0 are vulnerable to authentication bypass due to cache key confusion. The authenticator cache does not distinguish tokens that were validated with different introspection URLs. An attacker can therefore legitimately use a token to pr
Affected
- cpe ory/oathkeeperversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-33496
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-33496
ORY Oathkeeper is an Identity & Access Proxy (IAP) and Access Control Decision API that authorizes HTTP requests based on sets of Access Rules. Versions prior to 26.2.0 are vulnerable to authentication bypass due to cache key confusion. The authenticator c
nvd.nist.gov