Authentication bypass in Apache Camel OAuth processors
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-287.
Summary
Apache Camel from 4.11.0 before 4.18.5 and from 4.19.0 before 4.22.1 is affected. The camel-oauth processors that guard a route do not stop the exchange when an authenticated session cannot be established, so the request continues to the protected endpoint (CWE-287). An unauthenticated remote attacker can reach whatever the route does next, and no special configuration or prior access is needed.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
Improper Authentication vulnerability in Apache Camel OAuth component. This issue affects Apache Camel: from 4.11.0 before 4.18.5, from 4.19.0 before 4.22.1. The camel-oauth processors that guard a route did not stop the exchange when authentication could not be completed. Where a failure to establish an authenticated session should have terminated routing and returned an error to the caller, the processors fell through and returned control to the route, so the request continued to the protected endpoint as though authentication had succeeded. The effect is a fail-open authentication guard: an unauthenticated caller reached whatever the route did next. The condition is reached on the ordinary request path of a route configured to require OAuth, and needs no special configuration or prior access on the caller's part. Upgrade to Apache Camel 4.23.0, which fixes the issue. Users on the 4.18.x LTS releases stream should upgrade to 4.18.5. Users on the 4.22.x LTS releases stream should upgrade to 4.22.1. The processors now stop the exchange and set the appropriate error status whenever an authenticated session cannot be established, so a failed authentication no longer reaches the protected part of the route. For deployments that cannot upgrade immediately, place an explicit authorization check after the OAuth processor rather than relying on it to halt the exchange, and verify that the route stops on failure.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Upgrade Apache Camel to 4.18.5 on the 4.18.x LTS stream, to 4.22.1 on the 4.22.x LTS stream, or to 4.23.0. For deployments that cannot upgrade immediately, add an explicit authorization check after the OAuth processor and verify that the route stops on failure.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
- Fix · CNA Apache Camel (Apache Software Foundation) Fixed in 4.18.5, 4.22.1, 4.23.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apache Camel 4.18.5, 4.22.1
39 records Highest priority Priority HIGH 6 HIGH, 9 MEDIUM, 24 LOW
Other records, highest priority first
- TI-2026-76322 Unsafe deserialization in Apache Camel camel-hazelcastPriority HIGH 82
- TI-2026-76339 Path traversal in Apache Camel azure-files componentPriority HIGH 74
- TI-2026-76330 Path traversal in Apache Camel FTP consumer escapes polled directoryPriority HIGH 74
Vendor assessments
Timeline
- 2026-10-19 Threatist record created from CVE-2026-80312
- 2026-10-19 Alias added: GHSA-5m9r-c7qx-c2h6
- 2026-10-19 CISA SSVC decision points changed
- 2026-10-19 Priority changed: MEDIUM → LOW
- 2026-10-21 Priority changed: LOW → MEDIUM
- 2026-11-06 Affected versions changed · Red Hat
- 2026-11-06 CVSS score added · Red Hat
References
Patch 3
Other 1
More Apache vulnerabilities
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- TI-2024-30292 Apache OFBiz: Confused controller-view authorization logic (forced browsing) KEVCVSS 3.1CRITICAL 9.8
- TI-2024-26062 Apache OFBiz: Unauthenticated endpoint could allow execution of screen rendering code KEVCVSS 3.1CRITICAL 9.8
- TI-2024-21190 Apache OFBiz: Path traversal leading to RCE KEVCVSS 3.1CRITICAL 9.8
- TI-2024-18186 Apache HugeGraph-Server: Command execution in gremlin KEVCVSS 3.1CRITICAL 9.8
- TI-2023-25106 Deserialization of untrusted data in Apache ActiveMQ KEVCVSS 3.1CRITICAL 10.0
Sources
- CVE-2026-80312 · CVE Program
- CVE-2026-80312 · NVD
- FIRST EPSS
- GHSA-5m9r-c7qx-c2h6 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-80312 · Red Hat security data · CC BY 4.0
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