Memory Allocation with Excessive Size Value Affecting org.ow2.asm:asm package, versions [5.0,9.11)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published26 Oct 2026
- disclosed14 Oct 2026
- creditYu Bao
Introduced: 14 Oct 2026
NewCVE-2026-110257 (opens in a new tab)How to fix?
Upgrade org.ow2.asm:asm to version 9.11 or higher.
Overview
Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value via readBootstrapMethodsAttribute() in ClassReader. When an application parses an attacker-supplied class file, a crafted BootstrapMethods attribute with an unchecked declared length can trigger an allocation of roughly 2 GB from a file of about 100 bytes, causing an OutOfMemoryError that crashes the JVM or the thread processing the class.