SB2026092922 - OS Command Injection in shell-quote

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Main Vulnerability Database SB2026092922

SB2026092922 - OS Command Injection in shell-quote

Published: September 29, 2026 Updated: September 30, 2026

Security Bulletin ID SB2026092922
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) OS Command Injection (CVE-ID: CVE-2026-102422)

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSSv4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to execute arbitrary commands.

The vulnerability exists due to improper neutralization of special elements used in an OS command in the quote() function when processing an attacker-controlled string containing a line terminator after a { comment } token. A remote attacker can supply a crafted token sequence to execute arbitrary commands.

Exploitation requires the line terminator to follow a { comment } token in the same quote() call.


Remediation

Install update from vendor's website.

References