CVE-2026-84176
Apache Camel: Camel-Platform-HTTP-Vertx Cross-Origin Credential Exposure via Wildcard Origin Reflection
02 Description
Apache Camel: Camel-Platform-HTTP-Vertx Cross-Origin Credential Exposure via Wildcard Origin Reflection
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.41% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 35.7% of scored records. A rank, not a probability.
- NVD base score
- 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-10-19.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-19 10:30Z10 DAYS AGO
- Last updated
- 2026-10-19 18:42Z9 DAYS AGO
- Reserved
- 2026-09-01
- Assigning CNA
- apache
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-942Permissive Cross-domain Security Policy with Untrusted DomainsVariant
- Data version
- 5.2
- Document digest
- dc72f8f03498aa73b44e0b43520a8b605d32de651bc81e0842846fc2aa5cd87d
05 Affected products
06 References
- camel.apache.orgApache Camel Security Advisory - CVE-2026-84176https://camel.apache.org/security/CVE-2026-84176.html
- issues.apache.orgCAMEL-24436https://issues.apache.org/jira/browse/CAMEL-24436
- github.comFix on main, released in 4.23.0 (commit 4b557e4e82048515b0141f4e3594fbecf7dc741c)https://github.com/apache/camel/pull/25820
- github.comBackport to camel-4.22.x, released in 4.22.1 (commit b0399b181d26cd8b136fa98b54ec8e5c283338da)https://github.com/apache/camel/pull/25937
- github.comBackport to camel-4.18.x, released in 4.18.5 (commit e23332aec12f7ec3a841e52d1821e2a580c2fbc7)https://github.com/apache/camel/pull/25938
07 Remediation
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. Access-Control-Allow-Credentials is now sent only when the request origin matched an origin the operator actually configured. With no origin list the origin is still reflected, as before, but credentials are not granted, and Vary: Origin is now set whenever the origin is reflected so that a shared cache cannot serve one origin's response to another.