CVE-2026-110262
OW2 ASM 3.1 before 9.11 Excessive Memory Allocation in AdviceAdapter
OW2 ASM
CVSS
4.8MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.17%Chance of exploitation activity in the next 30 days, higher than 5% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 9.11ASMCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
OW2 ASM 3.1 before 9.11 contains an excessive memory allocation vulnerability in the asm-commons AdviceAdapter that allows attackers to exhaust memory by supplying crafted class files. Attackers can craft bytecode with many forward jump targets in constructors, causing unbounded stack copies in forwardJumpStackFrames and allocation of hundreds of megabytes, leading to denial of service.
Text from CVE List
Affected versions 1
- ASMaffected: 3.1 before 9.11CVE List
References 5
- gitlab.ow2.org/asm/asm/-/merge_requests/464Fixvia CVE List
- gitlab.ow2.org/asm/asm/-/commit/b7e6c88801790c9da214efd0498aecb9402796a0Fixvia CVE List
- vulncheck.com/advisories/ow2-asm-3.1-before-9.11-excessive-memory-allocation-in-adviceadapterAdvisoryvia CVE List
- gitlab.ow2.org/asm/asm/-/blob/ASM_9_10_1/asm-commons/src/main/java/org/objectweb/asm/commons/AdviceAdapter.java#L96Referencevia CVE List
- asm.ow2.io/versions.htmlReferencevia CVE List