CVE-2026-110259

Name	CVE-2026-110259
Description	OW2 ASM 3.0 before 9.11 contains an uncontrolled recursion vulnerability in ClassWriter.replaceAsmInstructions() that allows attackers to cause denial of service through crafted class files. Attackers can supply a class with a large method containing many long forward jumps, triggering unbounded toByteArray() recursion and a StackOverflowError during transformation.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1151198

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
asm (PTS)	bookworm	9.4-1	vulnerable
	trixie	9.8-1	vulnerable
	forky, sid	9.11.1-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
asm	source	(unstable)	9.11.1-1			1151198

Notes

[trixie] - asm <no-dsa> (Minor issue)
https://gitlab.ow2.org/asm/asm/-/merge_requests/459
Fixed by: https://gitlab.ow2.org/asm/asm/-/commit/0cc889f35ba0ecb64fc49243cbe17524282c56d3 (ASM_9_11)