CVE-2026-59173CWE-400denial-of-service

CVE-2026-59173

High · published July 18, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
54.1
In the wild
Unconfirmed
What it is

Uncontrolled Resource Consumption vulnerability in Apache Traffic Server.

This issue affects Apache Traffic Server: from 9.0.0 through 9.1.13, from 10.0.0 through 10.1.2.

Users are recommended to upgrade to version 9.1.14 or 10.1.3, which fixes the issue.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00740 · 54.1th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2026-07-18T17:17Z
Affected products (2)
ProductVersionsFixed in
apache/traffic_server≥ 9.0.0, < 9.2.149.2.14
apache/traffic_server≥ 10.0.0, < 10.1.310.1.3
References (2)
https://lists.apache.org/thread/lhlbhphmv5dsfgx1fx84mgonzbocpzhd · [email protected]http://www.openwall.com/lists/oss-security/2026/07/17/5 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 18 JUL 12:52Z
    Apache Traffic Server: DoS vulnerability in HTTP/2 via stalled flow-control conditions
    cvelistv5