MEDIUM 6.8 NVD
CVE-2026-110258
OW2 ASM 3.0 before 9.11 contains an excessive memory allocation vulnerability in Label.addSubroutineRetSuccessors() that fails to enforce the single-RET-per-JSR
OW2 ASM 3.0 before 9.11 contains an excessive memory allocation vulnerability in Label.addSubroutineRetSuccessors() that fails to enforce the single-RET-per-JSR rule. Attackers can supply a crafted invalid class file with multiple RET instructions for one JSR, triggering a roughly 2 GB allocation that crashes the JVM.
References
- https://asm.ow2.io/versions.html
- https://gitlab.ow2.org/asm/asm/-/blob/ASM_9_10_1/asm/src/main/java/org/objectweb/asm/Label
- https://gitlab.ow2.org/asm/asm/-/commit/4dabfe0aef14f8cccb0617640a4add8fbcc4ed36
- https://gitlab.ow2.org/asm/asm/-/merge_requests/458
- https://www.vulncheck.com/advisories/ow2-asm-3.0-before-9.11-excessive-memory-allocation-v
This medium severity vulnerability with a CVSS score of 6.8 was published on 2026-10-14 via NVD.
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