---
id: CVE-2026-110263
title: >-
  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
summary: >-
  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 …
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-674
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T17:18:25.210'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110263'
references:
  - url: 'https://asm.ow2.io/versions.html'
    label: disclosure@vulncheck.com
  - url: >-
      https://gitlab.ow2.org/asm/asm/-/blob/ASM_9_10_1/asm/src/main/java/org/objectweb/asm/signature/SignatureReader.java#L151
    label: disclosure@vulncheck.com
  - url: >-
      https://gitlab.ow2.org/asm/asm/-/commit/8f87fc0317a4c5ee8f538bcbb641928def25dbd6
    label: disclosure@vulncheck.com
  - url: 'https://gitlab.ow2.org/asm/asm/-/merge_requests/465'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/ow2-asm-3.0-before-9.11-uncontrolled-recursion-in-signaturereader
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-14T15:36:13.998Z'
---

## Overview

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 arguments to trigger a StackOverflowError during class transformation, causing denial of service.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.