SB2026110656 - Multiple vulnerabilities in SVG Sanitizer

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Main Vulnerability Database SB2026110656

SB2026110656 - Multiple vulnerabilities in SVG Sanitizer

Published: November 6, 2026

Security Bulletin ID SB2026110656
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Partial DoS

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Uncaught Exception (CVE-ID: N/A)

CWE-ID: CWE-248 - Uncaught Exception

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows an unauthenticated remote attacker to cause request failures in PHP 8 applications that pass untrusted input to SVG Sanitizer.

The vulnerability exists due to an out-of-bounds string offset in pre-parsing checks when input ends inside an unclosed tag, triggering an uncaught ValueError under default settings. An unauthenticated remote attacker can submit a truncated SVG to terminate the affected request even when the application catches Exception objects.


Remediation

Install update from vendor's website.

References