Improper validation of certificate with host mismatch in Apache Thrift - CVE-2026-41603

Vulnerability identifier: #VU128308

CSH Severity: Medium

CVSS v4: 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]

CVE-ID: CVE-2026-41603

CWE-ID: CWE-297

Exploitation vector: Remote access

Exploit availability: No public exploit available

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.

Apache Thrift
InfoSphere Optim Archive Viewer
Guardium Data Protection
IBM Security QRadar Network Threat Analytics
IBM InfoSphere Information Server
Anolis OS
thrift
thrift-devel
thrift-glib
thrift-qt
perl-thrift
python3-thrift

Install security update from vendor's website.

Apache Thrift - update to 0.23.0
InfoSphere Optim Archive Viewer - update to 11.7.0.15
IBM InfoSphere Information Server - update to 11.7.1.6 Service pack 3
Guardium Data Protection - addressed in versions 12.0p150, 12.0p90240
thrift - addressed in versions 0.23.0-2, 0.24.0-1
thrift-devel - addressed in versions 0.23.0-2, 0.24.0-1
thrift-glib - addressed in versions 0.23.0-2, 0.24.0-1
thrift-qt - addressed in versions 0.23.0-2, 0.24.0-1
perl-thrift - addressed in versions 0.23.0-2, 0.24.0-1
python3-thrift - addressed in versions 0.23.0-2, 0.24.0-1
IBM Security QRadar Network Threat Analytics - update to 2.0.2

• https://lists.apache.org/api/email.lua?id=sbtmh53rpfrghkg2x2ooh312t2rn87q2

• Multiple vulnerabilities in Apache Thrift
• Anolis OS update for thrift
• Anolis OS update for thrift
• Multiple vulnerabilities in IBM InfoSphere Information Server
• Multiple vulnerabilities in Network Threat Analytics App for IBM QRadar SIEM
• Multiple vulnerabilities in IBM InfoSphere Optim Archive Viewer
• Multiple vulnerabilities in IBM Guardium Data Protection