Read the docs
TI-2026-76174 Aliases CVE-2026-112046GHSA-84qw-843w-9rmf

Infinite loop in OW2 ASM Label.resolve() enables denial of service

Priority LOW 29CWE-835Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-835.

Summary

OW2 ASM 9.11 before 9.11.1 contains an infinite loop in Label.resolve() when 16-bit forward-reference offsets truncate after rewritten methods grow past 64 KB. An unauthenticated attacker can supply crafted class files whose transformed code exceeds 65535 bytes, hanging ClassReader.accept() and denying service to build tools, instrumenters, agents, or analyzers. The flaw is classified as CWE-835.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00119 1st percentileScored 2026-11-07
Fix Fixed ASM (OW2): 9.11.1Red Hat: 1 advisory

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OW2ASM9.11 to before 9.11.19.11.1Patch availableCNA
  • ASM VendorOW2 Affected 9.11 to before 9.11.1 Fixed in 9.11.1 Patch available CNA

Remediation

Upgrade OW2 ASM to version 9.11.1. Red Hat's RHSA-2026:86201 fixes Red Hat Hardened Images.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA ASM (OW2) Fixed in 9.11.1

Red Hat 1 advisory

  • RHSA-2026:86201 Released 2026-10-20 · Red Hat rating Moderate
    Red Hat Hardened Images RPMs Security Update
    • Red Hat Hardened Images maven3.9-3.9.16-0.5.hum1@noarch@public-hummingbird-aarch64-rpms, maven3.9-3.9.16-0.5.hum1@noarch@public-hummingbird-s390x-rpms, maven3.9-3.9.16-0.5.hum1@noarch@public-hummingbird-x86_64-rpms +4

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Hardened ImagesFixed RHSA-2026:86201

Timeline

  1. 2026-10-18 Threatist record created from CVE-2026-112046
  2. 2026-10-18 Alias added: GHSA-84qw-843w-9rmf
  3. 2026-10-19 CISA SSVC decision points changed
  4. 2026-10-19 Priority changed: MEDIUM → LOW
  5. 2026-10-20 Affected versions changed · Red Hat
  6. 2026-10-20 CVSS score added · Red Hat
  7. 2026-10-21 Fix available: RHSA-2026:86201 · Red Hat
  8. 2026-10-21 Fix available: Red Hat Hardened Images · Red Hat

References

Patch 2

Other 2

  • TI-2026-74085 Excessive resource consumption in OW2 ASM Analyzer allows denial of service CVSS 4.0MEDIUM 6.8
  • TI-2026-74084 Exponential memory allocation in OW2 ASM JSRInlinerAdapter CVSS 4.0MEDIUM 6.8
  • TI-2026-74083 Uncontrolled recursion in OW2 ASM SignatureReader enables denial of service CVSS 4.0MEDIUM 6.8
  • TI-2026-74081 Crafted class files exhaust CPU in OW2 ASM ClassWriter CVSS 4.0MEDIUM 6.8
  • TI-2026-74080 Quadratic memory allocation in OW2 ASM exception handlers CVSS 4.0MEDIUM 6.8
  • TI-2026-74079 Uncontrolled recursion in OW2 ASM allows denial of service CVSS 4.0MEDIUM 6.8
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences