CVE-2026-110258

OW2 ASM 3.0 before 9.11 Excessive Memory Allocation via Multiple RET Instructions

MEDIUM 6.8

At a glance

Source: NVD
EPSS: EPSS 0.17 % · percentile 6 (2026-10-28)
State: PUBLISHED
Published: 2026-10-14 14:16 UTC
Updated: 2026-10-14 16:10 UTC
Assigner: VulnCheck
NVD status: Awaiting Analysis

Description

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.

Weaknesses (CWE)

CWE-789 — Memory Allocation with Excessive Size Value

References

Scores

Version	Score	Vector	Scored by
CVSS 4.0	MEDIUM 6.8	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	VulnCheck
CVSS 3.1	MEDIUM 5.5	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	VulnCheck
CVSS 4.0	MEDIUM 6.8	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	NVD · disclosure@vulncheck.com (Secondary)
CVSS 3.1	MEDIUM 5.5	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	NVD · disclosure@vulncheck.com (Secondary)

European references

ENISA EUVD · EUVD-2026-101212
GCVE · GCVE-0-2026-110258

Affected products

Product	Versions
OW2 · ASM	affected 3.0 < 9.11

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD