SEPTEMBER 17, 2026
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Case File

CVE-2026-76956

MEDIUM · CVSS 5.9 EPSS 0.29% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-20 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

Versions 2.8.2 and 2.8.3 of libexpat are susceptible to a denial of service due to a misinterpretation of the getentropy return code, resulting in insufficient entropy that can be exploited through crafted XML content. This vulnerability can lead to hash flooding attacks, impacting applications that rely on libexpat for XML parsing. Organizations using these affected versions should prioritize patching to mitigate potential service disruptions.

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-2026-76956
Severity
MEDIUM
CVSS
5.9
EPSS
0.29%

Original NVD Description

In libexpat 2.8.2 and 2.8.3 before 2.8.4, misinterpretation of getentropy's return code leads to insufficient entropy, which results in being vulnerable to hash flooding attacks, causing a denial of service via crafted XML content.

Related CVEs

Other vulnerabilities affecting the same vendor(s)