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CVE-2026-49042

HighPublished

Apache Camel: langchain4j-tools: filter tool argument headers against declared parameters

Published: Jul 6, 2026
Updated: Jul 6, 2026
Assigning CNA: apache
Evidence observed: Aug 7, 2026

Primary CVSS

7.3/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS probability estimate

0.7%

Low · next 30 days

Percentile: 51.0%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Improper Input Validation vulnerability in Apache Camel. This issue affects Apache Camel: from 4.8.0 through 4.18.2, from 4.19.0 through 4.20.0. Users are recommended to upgrade to version 4.18.3, 4.21.0, which fixes the issue.

Sources

CVE-2026-49042PoC
PoC reproducer for CVE-2026-49042 (Apache Camel camel-langchain4j-tools): a prompt-injected LLM's tool-call arguments become unfiltered Exchange headers, hijacking the tool route's exec: sink for RCE. Fixed in 4.14.8/4.18.3/4.21.0.

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