SB20261111164 - Multiple vulnerabilities in IBM Watson Discovery for IBM Cloud Pak for Data

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Main Vulnerability Database SB20261111164

SB20261111164 - Multiple vulnerabilities in IBM Watson Discovery for IBM Cloud Pak for Data

Published: November 11, 2026

Security Bulletin ID SB20261111164
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Improper validation of certificate with host mismatch (CVE-ID: CVE-2026-41603)

CWE-ID: CWE-297 - Improper Validation of Certificate with Host Mismatch

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 impersonate a trusted host.

The vulnerability exists due to improper validation of certificate with host mismatch in Java TSSLTransportFactory when establishing TLS connections. A remote attacker can present a certificate with a mismatched hostname to impersonate a trusted host.


2) Improper validation of certificate with host mismatch (CVE-ID: CVE-2026-66053)

CWE-ID: CWE-297 - Improper Validation of Certificate with Host Mismatch

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 verification in TLS certificate validation.

The vulnerability exists due to improper validation of certificate with host mismatch in the Python TSSLSocket hostname matcher import in Apache Thrift Python bindings when establishing TLS connections. A remote attacker can present a certificate with a mismatched hostname to bypass hostname verification in TLS certificate validation.


Remediation

Install update from vendor's website.

References