CVE-2025-49763

HIGH

Apache Traffic Server < 9.2.11 - Denial of Service

Title source: rule

Description

ESI plugin does not have the limit for maximum inclusion depth, and that allows excessive memory consumption if malicious instructions are inserted. Users can use a new setting for the plugin (--max-inclusion-depth) to limit it. This issue affects Apache Traffic Server: from 10.0.0 through 10.0.5, from 9.0.0 through 9.2.10. Users are recommended to upgrade to version 9.2.11 or 10.0.6, which fixes the issue.

References (1)

[Mailing List, Vendor Advisory] https://lists.apache.org/thread/15t32nxbypqg1m2smp640vjx89o6v5f8

Scores

CVSS v3 7.5

EPSS 0.0054

EPSS Percentile 67.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

CWE

CWE-400

Status published

Affected Products (1)

apache/traffic_server < 9.2.11

Timeline

Published Jun 19, 2025

Tracked Since Feb 18, 2026