CVE-2026-58182 Apache Traffic Server: ts_lua plugin has initialization and resource-handling errors

What is CVE-2026-58182?

CVE-2026-58182 is a high-severity denial of service 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 ts_lua plugin mishandles initialization, transform context, and per-instance state.

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-400

Which versions are affected by CVE-2026-58182?

It affects 1 product.

Products include Apache Traffic Server.

How do I fix CVE-2026-58182?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-58182 being exploited?

There is no known exploitation of CVE-2026-58182 in the wild and no public exploit code.

Other vulnerabilities in Apache Traffic Server

• CVE-2014-3525 Other in n/a Critical 10.0
• CVE-2021-43082 heap-buffer-overflow with stats-over-http plugin Critical 9.8
• CVE-2021-35474 Dynamic stack buffer overflow in cachekey plugin Critical 9.8
• CVE-2019-17559 Other in Apache Traffic Server Critical 9.8
• CVE-2019-17565 Other in Apache Traffic Server Critical 9.8

All Apache Traffic Server vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2026-58182, GHSA-x56q-2cqh-7326, UBUNTU-CVE-2026-58182.