Apache Traffic Server drops the per-stream buffer cap when dechunking HTTP/2 or HTTP/3 responses, letting a slow client exhaust server memory. 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 are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.
History

Wed, 29 Jul 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 29 Jul 2026 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache traffic Server
Vendors & Products Apache
Apache traffic Server

Wed, 29 Jul 2026 08:30:00 +0000

Type Values Removed Values Added
Description Apache Traffic Server drops the per-stream buffer cap when dechunking HTTP/2 or HTTP/3 responses, letting a slow client exhaust server memory. 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 are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.
Title Apache Traffic Server: HTTP/2 and HTTP/3 dechunking removes per-stream buffer cap, allowing memory exhaustion
Weaknesses CWE-400
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-07-29T12:20:42.788Z

Reserved: 2026-07-21T20:59:11.713Z

Link: CVE-2026-65324

cve-icon Vulnrichment

Updated: 2026-07-29T12:20:39.086Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-29T09:45:03Z