CVE-2026-111813: Apache Traffic Server command injection in magick plugin

CVE-2026-111813 · Severity: critical · CVSS 10 · Published 2026-10-21

Apache Traffic Server is a caching proxy that accelerates web content delivery. An unauthenticated attacker can inject arbitrary commands into the experimental magick plugin's ImageMagick conversion process, leading to remote code execution on the server. This vulnerability affects multiple versions and can be exploited without authentication.

Technologies: Apache Traffic Server. Vendors: Apache.

Quick answers

Is CVE-2026-111813 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-111813 being exploited in the wild.
How severe is CVE-2026-111813?
Critical severity, with a CVSS score of 10, published 21 October 2026.
Which products and versions are affected?
Apache Traffic Server 8.0.1 through 8.1.11, 9.0.0 through 9.2.15, 10.0.0 through 10.1.4, 10.2.0.
Is there a fix for CVE-2026-111813?
Yes: fixed in Traffic Server 9.2.16, 10.1.5, 10.2.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-111813 attacked?
It is attacked over the network.
Am I affected by CVE-2026-111813?
Check whether you run Apache Traffic Server at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: Traffic Server 9.2.16, 10.1.5, 10.2.1

Technical details

The magick plugin fails to properly validate or sanitize user-supplied arguments before passing them to ImageMagick's convert command. An unauthenticated network attacker can craft malicious requests to inject shell metacharacters or ImageMagick options that achieve arbitrary command execution with the privileges of the Traffic Server process.

Affected products

  • Apache Traffic Server 8.0.1 through 8.1.11, 9.0.0 through 9.2.15, 10.0.0 through 10.1.4, 10.2.0

Timeline

  • 2026-10-21: disclosed

References

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