CVE-2026-110261

Medium

Description

OW2 ASM 3.0 before 9.11 contains a denial of service vulnerability that allows attackers to exhaust CPU by supplying crafted class files processed with ClassWriter.COMPUTE_FRAMES. Attackers can craft methods that make the unbounded MethodWriter.computeAllFrames() fix point algorithm converge slowly, tying up transforming threads for unbounded time.

SeverityMedium

CVSS5.5

Exploit probability—

Product

Microsoft Azl3 Objectweb-asm

PublishedOct 14, 2026

First seenOct 14, 2026

Weakness typeCWE-407CWE-407

How to fix

Patches

gitlab.ow2.org/asm/asm/-/merge_requests/463
gitlab.ow2.org/asm/asm/-/commit/ab68bbd2521359b7c8cd3517c6331ced3d817ed0

Vendor advisories

asm.ow2.io/versions.html

Affected products

Product	Affected versions	Fixed in
microsoft azl3_objectweb-asm_9.6-1	No range specified	—

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