CVE-2026-33496: ORY Oathkeeper is an Identity & Access Proxy (IAP) and Access Control Decision API that authorizes HTTP reques

Q: How do I fix CVE-2026-33496?

oathkeeper: upgrade to 26.2.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-33496 being exploited?

CVE-2026-33496 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-33496 affect?

CVE-2026-33496 affects oathkeeper. Severity is high (CVSS 8.1). 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. Th

Routine

HIGH 8.1UPGRADE

CVE-2026-33496 is a high-severity flaw (CVSS 8.1) affecting oathkeeper. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 `oauth2_introspection` 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 subsequ

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 68%)
CISA exploited list	No
Weakness	CWE-305, CWE-1289
Published	2026-03-26
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: ory

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-26 18:16 UTCPublished CVE record published
2026-06-17 10:37 UTCUpdated Record last modified

ory oathkeeper UPGRADE

Affected: < 26.2.0

Fixed in: 26.2.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy oathkeeper || rpm -q oathkeeper || oathkeeper --version

2. UPGRADE to 26.2.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade oathkeeper

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade oathkeeper

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-33496?

oathkeeper: upgrade to 26.2.0. Exact commands for each OS are on this page.

Is CVE-2026-33496 being exploited?

CVE-2026-33496 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-33496 affect?

CVE-2026-33496 affects oathkeeper. Severity is high (CVSS 8.1). 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. Th

How urgent is CVE-2026-33496?

Priority 36/100. High severity

Related CVEs

CVE-2026-33495 MEDIUM 6.5 UPGRADE ORY Oathkeeper is an Identity & Access Proxy (IAP) and Access Control Decision API that authorizes HTTP reques
CVE-2026-33494 CRITICAL 10.0 UPGRADE ORY Oathkeeper is an Identity & Access Proxy (IAP) and Access Control Decision API that authorizes HTTP reques

References

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