CVE-2025-49763

Apache Traffic Server: Remote DoS via memory exhaustion in ESI Plugin

State: Published
Severity: 7.5 High
Published: Jun 19, 2025
Updated: Jun 20, 2025
Reserved: Jun 9, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-400 Uncontrolled Resource Consumption

Affected Products

Product	Versions
Apache Traffic ServerApache Software Foundation	10.0.0 through 10.0.5Affected 9.0.0 through 9.2.10Affected

References

https://lists.apache.org/thread/15t32nxbypqg1m2smp640vjx89o6v5f8vendor-advisory

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.