What is CVE-2026-58163?

CVE-2026-58163 is a high-severity vulnerability in Apache Software Foundation Traffic Server, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2026-07-29.

How severe is CVE-2026-58163?

High severity. CVSS v3 base score is 7.5 out of 10.

Deserialization in Apache Software Foundation Traffic Server

CVE-2026-58163

Apache Traffic Server mishandles on-disk cache fields and object lifetimes, corrupting state or crashing. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users ar…

Vulnerability class: Insecure Deserialization

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Apache Software Foundation Traffic Server — versions 8.0.0, 9.0.0, 10.0.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

security@apache.org (vendor-advisory)

Frequently asked questions

What is CVE-2026-58163?: CVE-2026-58163 is a high-severity vulnerability in Apache Software Foundation Traffic Server, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2026-07-29.
How severe is CVE-2026-58163?: High severity. CVSS v3 base score is 7.5 out of 10.