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OW2 ASM 3.0 before 9.11 Uncontrolled Recursion via ClassWriter.replaceAsmInstructions()

Type: advisorySource: Official CVE List1 source record

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 toByteArray() recursion and a StackOverflowError during transformation.

Announced Group revision 1
Original source ↗

CVE-2026-110259

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-110259

ASM

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://gitlab.ow2.org/asm/asm",
    "vendor": "OW2",
    "product": "ASM",
    "versions": [
      {
        "status": "affected",
        "version": "3.0",
        "lessThan": "9.11",
        "versionType": "custom"
      }
    ],
    "packageURL": "pkg:maven/org.ow2.asm/asm",
    "collectionURL": "https://repo1.maven.org/maven2/",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-110259

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#21982 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement