SB20261109198 - Improper Encoding or Escaping of Output in qs

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Main Vulnerability Database SB20261109198

SB20261109198 - Improper Encoding or Escaping of Output in qs

Published: November 9, 2026

Security Bulletin ID SB20261109198
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Encoding or Escaping of Output (CVE-ID: CVE-2026-110910)

CWE-ID: CWE-116 - Improper Encoding or Escaping of Output

CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows an unauthenticated remote attacker to inject parameters into application-generated query strings.

The vulnerability exists due to missing encoding of empty-array keys in qs.stringify when the non-default allowEmptyArrays option is enabled and key encoding is otherwise active. An unauthenticated remote attacker can supply crafted key names with empty-array values to an application that serializes untrusted keys, causing embedded query syntax to introduce parameters not present as separate object keys.


Remediation

Install update from vendor's website.

References