SEPTEMBER 17, 2026
Live Feed
Back to database
Case File

CVE-2026-79772

MEDIUM · CVSS 5.3 EPSS 0.25% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-25 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

Nokogiri versions prior to 1.19.1 are vulnerable due to improper handling of return values in the canonicalize method, which can lead to the acceptance of invalid XML. This flaw allows attackers to bypass signature validation in downstream SAML libraries, potentially compromising security. Organizations using affected versions of Nokogiri, particularly those implementing SAML for authentication, should prioritize updating to mitigate this risk.

Public Exploit Signal

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

Detected Signals
exploit
GitHub PoC Links

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

CVE
CVE-2026-79772
Severity
MEDIUM
CVSS
5.3
EPSS
0.25%

Original NVD Description

Nokogiri versions before 1.19.1 fail to check the return value from xmlC14NExecute in the canonicalize method, returning an empty string on failure instead of raising an exception. Attackers can exploit this to bypass signature validation in downstream SAML libraries by providing invalid canonicalized XML that is incorrectly accepted as valid.

Related CVEs

Other vulnerabilities affecting the same vendor(s)