CVE-2025-49763

Name	CVE-2025-49763
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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-5948-1
Debian Bugs	1108044

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
trafficserver (PTS)	bullseye	8.1.10+ds-1~deb11u1	vulnerable
	bullseye (security)	8.1.11+ds-0+deb11u2	vulnerable
	bookworm	9.2.5+ds-0+deb12u2	vulnerable
	bookworm (security)	9.2.5+ds-0+deb12u3	fixed
	sid	9.2.5+ds-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
trafficserver	source	bookworm	9.2.5+ds-0+deb12u3		DSA-5948-1
trafficserver	source	(unstable)	(unfixed)			1108044

Notes

https://www.openwall.com/lists/oss-security/2025/06/17/7
https://github.com/apache/trafficserver/commit/2db8b8dc96e57fc292850f77b9783630cc9590b9 (9.2.11-rc0)
https://github.com/apache/trafficserver/commit/7f178de7de19498c1c320ea9b62c2f32355f3893 (master)