Malicious Apache Camel Exec Header Injection

PremiumReviewedSigma · High · v1
Category
webserver
Author
HuntRule
Published
2026-07-01
Updated
2026-08-28

ATT&CK techniques

Initial Access → Execution
  1. Recon

  2. Resource Dev

  3. Persistence

  4. Priv Esc

  5. Defense Evasion

  6. Cred Access

  7. Discovery

  8. Lateral Movement

  9. Collection

  10. C2

  11. Exfiltration

  12. Impact

What it detects

This rule detects HTTP requests containing Apache Camel exec-command headers used to bypass the header filter in CVE-2025-27636 and CVE-2025-29891. Attackers inject CamelExecCommandExecutable and CamelExecCommandArgs headers to run arbitrary commands on vulnerable Camel routes. Presence of these headers in inbound traffic indicates exploitation attempts.

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Malicious Apache Camel Exec Header Injection
Pivot detection · T1059 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.