EUVD-2026-101217

OW2 ASM 3.0 before 9.11 contains an uncontrolled recursion vulnerability in SignatureReader.parseType that allows attackers to exhaust the stack via deeply nested generic type signatures. Attackers can supply a crafted class file with a long Signature attribute containing many nested type argumen...

CVE-2026-110261

OW2 ASM 3.0 before 9.11 contains a denial of service vulnerability caused by inefficient algorithmic complexity (CWE-407). When processing crafted class files using ClassWriter.COMPUTE_FRAMES , an attacker can supply methods that cause the MethodWriter.computeAllFrames() fix point algorithm to co...

CVE-2026-110261 OW2 ASM 3.0 before 9.11 Excessive CPU Consumption via ClassWriter COMPUTE_FRAMES

OW2 ASM 3.0 before 9.11 contains a denial of service vulnerability that allows attackers to exhaust CPU by supplying crafted class files processed with ClassWriter.COMPUTEFRAMES. Attackers can craft methods that make the unbounded MethodWriter.computeAllFrames fix point algorithm converge slowly,...

EUVD-2026-101215

OW2 ASM 3.0 before 9.11 contains a denial of service vulnerability that allows attackers to exhaust CPU by supplying crafted class files processed with ClassWriter.COMPUTEFRAMES. Attackers can craft methods that make the unbounded MethodWriter.computeAllFrames fix point algorithm converge slowly,...

EUVD-2026-101214

OW2 ASM 3.0 before 9.11 contains a quadratic memory allocation vulnerability in MethodWriter.computeMaxStackAndLocal and computeAllFrames when using COMPUTEMAXS or COMPUTEFRAMES. Attackers can supply a crafted class file with thousands of overlapping exception handlers, causing excessive Edge...

CVE-2026-110259

OW2 ASM 3.0 before version 9.11 is vulnerable to an uncontrolled recursion flaw in the ClassWriter.replaceAsmInstructions() method. An attacker can trigger a denial of service (DoS) by providing a crafted class file containing a large method with numerous long forward jumps. This input triggers u...

CVE-2026-110260

OW2 ASM 3.0 versions before 9.11 are vulnerable to a quadratic memory allocation issue within the MethodWriter.computeMaxStackAndLocal() and computeAllFrames() methods. When processing a crafted class file containing thousands of overlapping exception handlers while using COMPUTE_MAXS or COMPUTE_...

EUVD-2026-101213

OW2 ASM 3.0 before 9.11 contains an uncontrolled recursion vulnerability in ClassWriter.replaceAsmInstructions that allows attackers to cause denial of service through crafted class files. Attackers can supply a class with a large method containing many long forward jumps, triggering unbounded...

CVE-2026-110260 OW2 ASM 3.0 before 9.11 Quadratic Memory Allocation via Exception Handlers

OW2 ASM 3.0 before 9.11 contains a quadratic memory allocation vulnerability in MethodWriter.computeMaxStackAndLocal and computeAllFrames when using COMPUTEMAXS or COMPUTEFRAMES. Attackers can supply a crafted class file with thousands of overlapping exception handlers, causing excessive Edge...

CVE-2026-110259 OW2 ASM 3.0 before 9.11 Uncontrolled Recursion via ClassWriter.replaceAsmInstructions()

OW2 ASM 3.0 before 9.11 contains an uncontrolled recursion vulnerability in ClassWriter.replaceAsmInstructions that allows attackers to cause denial of service through crafted class files. Attackers can supply a class with a large method containing many long forward jumps, triggering unbounded...

CVE-2026-110258 OW2 ASM 3.0 before 9.11 Excessive Memory Allocation via Multiple RET Instructions

OW2 ASM 3.0 before 9.11 contains an excessive memory allocation vulnerability in Label.addSubroutineRetSuccessors that fails to enforce the single-RET-per-JSR rule. Attackers can supply a crafted invalid class file with multiple RET instructions for one JSR, triggering a roughly 2 GB allocation...

CVE-2026-110258

The OW2 ASM 3.0 library, in versions prior to 9.11 , contains an excessive memory allocation vulnerability in the Label.addSubroutineRetSuccessors() method. The root cause is a failure to enforce the single-RET-per-JSR rule, allowing an attacker to provide a crafted invalid class file containing ...

EUVD-2026-101212

OW2 ASM 3.0 before 9.11 contains an excessive memory allocation vulnerability in Label.addSubroutineRetSuccessors that fails to enforce the single-RET-per-JSR rule. Attackers can supply a crafted invalid class file with multiple RET instructions for one JSR, triggering a roughly 2 GB allocation...

CVE-2026-110258 OW2 ASM 3.0 before 9.11 Excessive Memory Allocation via Multiple RET Instructions

OW2 ASM 3.0 before 9.11 contains an excessive memory allocation vulnerability in Label.addSubroutineRetSuccessors that fails to enforce the single-RET-per-JSR rule. Attackers can supply a crafted invalid class file with multiple RET instructions for one JSR, triggering a roughly 2 GB allocation...

CVE-2026-110257

OW2 ASM 5.0 versions prior to 9.11 are vulnerable to an excessive memory allocation vulnerability within the ClassReader.readBootstrapMethodsAttribute() function. The root cause is the failure to validate attribute_length when sizing an int array from num_bootstrap_methods . An attacker can provi...

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 numbootstrapmethods without validating attributelength. Attackers can supply a crafted class file of about 100 bytes that forces roughly 2 GB...

EUVD-2026-101211

OW2 ASM 5.0 before 9.11 contains an excessive memory allocation vulnerability in ClassReader.readBootstrapMethodsAttribute that sizes an int array from numbootstrapmethods without validating attributelength. Attackers can supply a crafted class file of about 100 bytes that forces roughly 2 GB...

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 numbootstrapmethods without validating attributelength. Attackers can supply a crafted class file of about 100 bytes that forces roughly 2 GB...