CVE-2026-110257 — OW2 ASM 5.0 before 9.11 Excessive Memory Allocation via BootstrapMethods Attribute
OW2 ASM 5.0 before 9.11 contains an excessive memory allocation vulnerability in ClassReader.readBootstrapMethodsAttribute() that sizes an int array from num_bootstrap_methods w…
Published: 2026-10-14 · CVSS: 6.8 · CVSS 4.0
OW2 ASM 5.0 before 9.11 contains an excessive memory allocation vulnerability in ClassReader.readBootstrapMethodsAttribute() that sizes an int array from num_bootstrap_methods without validating attribute_length. Attackers can supply a crafted class file of about 100 bytes that forces roughly 2 GB allocation, causing an OutOfMemoryError that crashes the JVM or consuming thread.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7