OW2 ASM 9.11 before 9.11.1 Denial of Service via Infinite Loop in Label.resolve() (OW2 ASM)

CVE-2026-112046

MEDIUM 6.8

At a glance

Source: NVD
EPSS: EPSS 0.12 % · percentile 2 (2026-10-29)
State: PUBLISHED
Published: 2026-10-18 12:19 UTC
Updated: 2026-10-19 16:38 UTC
Assigner: VulnCheck
NVD status: Awaiting Analysis

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Description

OW2 ASM 9.11 before 9.11.1 contains an infinite loop vulnerability in Label.resolve() caused by 16-bit forward-reference offsets truncating when rewritten methods exceed 64 KB. Attackers can supply crafted class files whose transformed code grows past 65535 bytes, hanging ClassReader.accept() and denying service to build tools, instrumenters, agents, or analyzers.

Weaknesses (CWE)

CWE-835 — Loop with Unreachable Exit Condition

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-2026-103508
GCVE · GCVE-0-2026-112046

Affected products

Product	Versions
OW2 · ASM	affected 9.11 < 9.11.1

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

🟡 OW2 ASM 9.11 before 9.11.1 Denial of Service via Infinite Loop in Label.resolve() (OW2 ASM)