SB20260831107 - Input validation error in ip-address

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Main Vulnerability Database SB20260831107

SB20260831107 - Input validation error in ip-address

Published: August 31, 2026

Security Bulletin ID SB20260831107
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Input validation error (CVE-ID: CVE-2026-69198)

CWE-ID: CWE-20 - Improper input validation

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


The vulnerability allows a remote attacker to bypass SSRF and trust-boundary checks.

The vulnerability exists due to improper input validation in the special-use classification methods built on isInSubnet when parsing an address string with a CIDR suffix. A remote attacker can supply a specially crafted address such as an internal address with a shorter CIDR suffix to bypass SSRF and trust-boundary checks.

Exploitation requires an application to accept a bare address string that may include a CIDR suffix and classify it before using the resulting address.


Remediation

Install update from vendor's website.

References