CVE-2026-112046 OW2 ASM 9.11 before 9.11.1 Denial of Service via Infinite Loop in Label.resolve()
Attackers can cause a denial of service in OW2 ASM by supplying crafted class files that trigger an infinite loop during bytecode processing.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-112046?
CVE-2026-112046 is a medium-severity denial of service vulnerability in OW2 ASM, published on 18 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-835
Which versions are affected by CVE-2026-112046?
How do I fix CVE-2026-112046?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-112046 being exploited?
There is no known exploitation of CVE-2026-112046 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-112046, GHSA-84qw-843w-9rmf, UBUNTU-CVE-2026-112046.