CVE-2026-49042
HIGHCVE-2026-49042 is a high-severity (CVSS 7.3) Improper Input Validation vulnerability in org.apache.camel:camel-langchain4j-tools. O3 Security confirms whether CVE-2026-49042 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Apache Camel: langchain4j-tools: filter tool argument headers against declared parameters
Real-World Exposure
org.apache.camel:camel-langchain4j-tools☕org.apache.camel:camel-langchain4j-tools☕org.apache.camel:camel-langchain4j-agent☕org.apache.camel:camel-langchain4j-agent☕org.apache.camel:camel-spring-ai-tools☕org.apache.camel:camel-spring-ai-toolsReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
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.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.apache.camel:camel-langchain4j-tools | ≥ 4.8.0&&< 4.18.3 | 4.18.3 |
| ☕Maven | org.apache.camel:camel-langchain4j-tools | ≥ 4.19.0&&< 4.21.0 | 4.21.0 |
| ☕Maven | org.apache.camel:camel-langchain4j-agent | ≥ 4.8.0&&< 4.18.3 | 4.18.3 |
| ☕Maven | org.apache.camel:camel-langchain4j-agent | ≥ 4.19.0&&< 4.21.0 | 4.21.0 |
| ☕Maven | org.apache.camel:camel-spring-ai-tools | ≥ 4.8.0&&< 4.18.3 | 4.18.3 |
| ☕Maven | org.apache.camel:camel-spring-ai-tools | ≥ 4.19.0&&< 4.21.0 | 4.21.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.camel:camel-langchain4j-tools. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update org.apache.camel:camel-langchain4j-tools to 4.18.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-49042 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2026-49042 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2026-49042. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2026-49042 in your dependencies?
O3 detects CVE-2026-49042 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.