CVE-2026-58185 Apache Traffic Server: Use-after-free in the intercept plugin
A use-after-free vulnerability in the Apache Traffic Server intercept plugin allows attackers to potentially execute code or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-58185?
CVE-2026-58185 is a high-severity use after free vulnerability in Apache Traffic Server, published on 29 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Apache Traffic Server intercept plugin has a use-after-free.
This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3.
Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.
Weakness: CWE-416
Which versions are affected by CVE-2026-58185?
It affects 1 product.
Products include Apache Traffic Server.
How do I fix CVE-2026-58185?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-58185 being exploited?
There is no known exploitation of CVE-2026-58185 in the wild and no public exploit code.
Other vulnerabilities in Apache Traffic Server
Sources
Also known as DEBIAN-CVE-2026-58185, GHSA-qw2q-phpw-69hv, UBUNTU-CVE-2026-58185.