SB2026093066 - Multiple vulnerabilities in IBM Documentation Offline

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Main Vulnerability Database SB2026093066

SB2026093066 - Multiple vulnerabilities in IBM Documentation Offline

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

Security Bulletin ID SB2026093066
CSH Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

High 50% Medium 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Input validation error (CVE-ID: CVE-2026-48618)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to bypass tls wildcard-depth authentication.

The vulnerability exists due to improper input validation in TLS hostname handling when normalizing hostnames with unicode dot separators. A remote attacker can present a crafted hostname to bypass tls wildcard-depth authentication.

This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations.


2) Improper Null Termination (CVE-ID: CVE-2026-48930)

CWE-ID: CWE-170 - Improper Null Termination

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


The vulnerability allows a remote attacker to bypass hostname-based authority checks.

The vulnerability exists due to c-string truncation in resolver bindings in TLS hostname handling when processing hostnames containing an embedded nul character. A remote attacker can present a crafted hostname to bypass hostname-based authority checks.


Remediation

Install update from vendor's website.

References