CVE-2026-84181
Apache Camel: Camel-Shiro Authentication Bypass via Skipped Credential Verification on Subject Reuse
02 Description
Apache Camel: Camel-Shiro Authentication Bypass via Skipped Credential Verification on Subject Reuse
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 35.8% of scored records. A rank, not a probability.
- NVD base score
- 5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/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 10:31Z10 DAYS AGO
- Last updated
- 2026-10-19 18:39Z9 DAYS AGO
- Reserved
- 2026-09-01
- Assigning CNA
- apache
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.9)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-287Improper AuthenticationClass
- Data version
- 5.2
- Document digest
- 09da781b23e95e9d094f4873c17c423d25f1025f6ef05a7a2852933cd6b4b157
05 Affected products
06 References
- camel.apache.orgApache Camel Security Advisory - CVE-2026-84181https://camel.apache.org/security/CVE-2026-84181.html
- issues.apache.orgCAMEL-24439https://issues.apache.org/jira/browse/CAMEL-24439
- github.comFix on main, released in 4.23.0 (commit 6f72ae648eb0c6e54a913f7be33cd2c020355b95)https://github.com/apache/camel/pull/25822
- github.comBackport to camel-4.22.x, released in 4.22.1 (commit 95b4c1500001bc32877df5b8fca0bc7bdd080666)https://github.com/apache/camel/pull/25944
- github.comBackport to camel-4.18.x, released in 4.18.5 (commit 4ec9b37d70b08c478966000fb1bd653abfe410e3)https://github.com/apache/camel/pull/25946
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. The processor now verifies the presented credentials on every exchange rather than accepting a subject already bound to the thread. Setting alwaysReauthenticate=false restores the previous behaviour for deployments that depend on it.