EIP-2026-103967

PRE-CVE

libxml2 2.6.x - 'XMLWriter::writeAttribute()' Memory Leak Information Disclosure

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-103967. PoCs published by Kees Cook.

AI-analyzed exploit summary This PHP script demonstrates a local information-disclosure vulnerability in the 'libxml2' library by crafting a malformed XML attribute that triggers a memory content leak. The exploit uses XMLWriter to generate an XML element with a specific Unicode character sequence that exploits the vulnerability.

Description

libxml2 2.6.x - 'XMLWriter::writeAttribute()' Memory Leak Information Disclosure

Exploits (1)

exploitdb WORKING POC VERIFIED
by Kees Cook · phpremotemultiple
https://www.exploit-db.com/exploits/35252

This PHP script demonstrates a local information-disclosure vulnerability in the 'libxml2' library by crafting a malformed XML attribute that triggers a memory content leak. The exploit uses XMLWriter to generate an XML element with a specific Unicode character sequence that exploits the vulnerability.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: libxml2 (versions affected by CVE-2010-4494)
No auth needed
Prerequisites: PHP with XMLWriter support · Vulnerable version of libxml2
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026