CVE-2026-110260

OW2 ASM 3.0 before 9.11 Quadratic Memory Allocation via Exception Handlers

CVE-2026-110260 is fixed in asm on 1 platform by DEBIAN-CVE-2026-110260 (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

0.0018

7th percentile

OW2 ASM 3.0 before 9.11 contains a quadratic memory allocation vulnerability in MethodWriter.computeMaxStackAndLocal() and computeAllFrames() when using COMPUTE_MAXS or COMPUTE_FRAMES. Attackers can supply a crafted class file with thousands of overlapping exception handlers, causing excessive Edge allocations and an OutOfMemoryError that crashes the JVM.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
asm · Debian 14	9.11.1-1	DEBIAN-CVE-2026-110260	Oct 24, 2026

Details

Published
October 14, 2026
Weakness
Inefficient Algorithmic Complexity
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-110260

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