CVE-2026-110270
OW2 ASM 3.0 before 9.11 Exponential Memory Allocation in JSRInlinerAdapter
- State
- Published
- Severity
- 6.8 Medium
- Published
- Oct 14, 2026
- Updated
- Oct 26, 2026
- Reserved
- Oct 13, 2026
Description
OW2 ASM 3.0 before 9.11 contains an uncontrolled memory allocation vulnerability in the asm-commons JSRInlinerAdapter that inlines JSR/RET subroutines without memory or work limits. Attackers can supply a crafted class file with nested subroutines to force O(2^n) memory allocation, causing an OutOfMemoryError that crashes the JVM.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.8 Medium | 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 |
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-407 Inefficient Algorithmic Complexity
Affected Products
| Product | Versions |
|---|---|
ASMOW2 |
|
References
- https://gitlab.ow2.org/asm/asm/-/merge_requests/466patch
- https://gitlab.ow2.org/asm/asm/-/commit/f2b988af48719f85a274f2a05e37bc55c0cd22a1patch
- https://gitlab.ow2.org/asm/asm/-/blob/ASM_9_10_1/asm-commons/src/main/java/org/objectweb/asm/commons/JSRInlinerAdapter.java#L232technical-description
- ASM 9.11 Release Notesrelease-notes
- VulnCheck Advisory: OW2 ASM 3.0 before 9.11 Exponential Memory Allocation in JSRInlinerAdapterthird-party-advisory
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