CVE-2026-110261

OW2 ASM 3.0 before 9.11 Excessive CPU Consumption via ClassWriter COMPUTE_FRAMES

CVE-2026-110261 is fixed in asm on 1 platform by DEBIAN-CVE-2026-110261 (version 9.11.1-1), released October 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

5.5

Moderate

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0017

6th percentile

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.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
asm · Debian 14	9.11.1-1	DEBIAN-CVE-2026-110261	Oct 24, 2026

Details

Published
October 14, 2026
Weakness
Inefficient Algorithmic Complexity
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-110261

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