CVE-2026-58156CWE-863broken-access-control

CVE-2026-58156

Medium · published July 29, 2026

CVSS v3.1
4.9
EPSS
0%
Percentile
31.7
In the wild
Unconfirmed
What it is

Apache Traffic Server mis-parses ports in URLs and userinfo, allowing port-based access-control bypass.

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.

The record
Technical detail
CVSS v3.1
4.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00388 · 31.7th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-07-29T13:16Z
Affected products (3)
ProductVersionsFixed in
apache/traffic_server≥ 8.0.0, ≤ 8.1.9—
apache/traffic_server≥ 9.0.0, < 9.2.159.2.15
apache/traffic_server≥ 10.0.0, < 10.1.410.1.4
References (1)
https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d · [email protected]
EPSS history
Timeline
  • 29 JUL 08:25Z
    Apache Traffic Server: URL and port parsing errors allow access-control bypass
    cvelistv5