CVE-2026-110262
OW2 ASM 3.1 before 9.11 Excessive Memory Allocation in AdviceAdapter
- State
- Published
- Severity
- 4.8 Medium
- Published
- Oct 14, 2026
- Updated
- Oct 14, 2026
- Reserved
- Oct 13, 2026
Description
OW2 ASM 3.1 before 9.11 contains an excessive memory allocation vulnerability in the asm-commons AdviceAdapter that allows attackers to exhaust memory by supplying crafted class files. Attackers can craft bytecode with many forward jump targets in constructors, causing unbounded stack copies in forwardJumpStackFrames and allocation of hundreds of megabytes, leading to denial of service.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 3.3 Low | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L | VulnCheck |
Weaknesses
- CWE-770 Allocation of Resources Without Limits or Throttling
Affected Products
| Product | Versions |
|---|---|
ASMOW2 |
|
References
- https://gitlab.ow2.org/asm/asm/-/merge_requests/464patch
- https://gitlab.ow2.org/asm/asm/-/commit/b7e6c88801790c9da214efd0498aecb9402796a0patch
- https://gitlab.ow2.org/asm/asm/-/blob/ASM_9_10_1/asm-commons/src/main/java/org/objectweb/asm/commons/AdviceAdapter.java#L96technical-description
- ASM 9.11 Release Notesrelease-notes
- VulnCheck Advisory: OW2 ASM 3.1 before 9.11 Excessive Memory Allocation in AdviceAdapterthird-party-advisory
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