SEPTEMBER 17, 2026
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Case File

CVE-2026-86138

MEDIUM · CVSS 6.9 EPSS 0.13% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-05 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

An integer overflow in the xmlDictAddQString function of libxml2 versions prior to 2.15.4 can lead to a heap-based buffer overflow, potentially allowing an attacker to execute arbitrary code or crash the application. Organizations using affected versions of libxml2 should prioritize patching to mitigate the risk of exploitation. This vulnerability is particularly relevant for developers and system administrators managing applications that rely on this XML parsing library.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-86138
Severity
MEDIUM
CVSS
6.9
EPSS
0.13%

Original NVD Description

In libxml2 before 2.15.4, xmlDictAddQString in dict.c has an integer overflow and resultant heap-based buffer overflow.

Related CVEs

Other vulnerabilities affecting the same vendor(s)