CVE-2026-112046 PUBLISHED

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

Assigner: VulnCheck
Reserved: 18.10.2026 Published: 18.10.2026 Updated: 18.10.2026

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.

Metrics

CVSS Vector: 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
CVSS Score: 6.8

Product Status

Vendor OW2
Product ASM
Versions Default: unaffected
  • affected from 9.11 to 9.11.1 (excl.)

Credits

  • Eric Bruneton finder

References

Problem Types

  • Loop with Unreachable Exit Condition ('Infinite Loop') CWE