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CVE-2026-43869

Apache Thrift: TSSLTransportFactory.java hostname verification

HIGH
7.3
CVSS Score
Published: May 5, 2026 at 07:25 AM UTC
Updated: September 9, 2026 at 01:20 PM UTC
8 products affected across 2 vendorsThriftOpenShift Container PlatformFuse

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Severity
HIGH7.3
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

Improper Validation of Certificate with Host Mismatch vulnerability in Apache Thrift. This issue affects Apache Thrift: before 0.23.0. Users are recommended to upgrade to version 0.23.0, which fixes the issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Thrift· Apachepypi
95%
v < 0.23.0
Affected range stops below 0.23.0, so it looks safe — our inference, not a vendor statement
Advanced Cluster Management for Kubernetes· Red Hatcontainer
60%
2
Vendor states this is fixed in 1780677003 (unaffected)
Vendor states this is fixed in 1780926805 (unaffected)
Vendor states this is fixed in 1782383730 (unaffected)
Vendor states this is fixed in 1782693386 (unaffected)
Vendor states this is fixed in 2 (unaffected)
AI Inference Server· Red Hatcontainer
60%
All versions
Build of Apache Camel for Quarkus· Red Hatrpm
60%
3
Fuse· Red Hatrpm
60%
7
Multicluster Global Hub· Red Hatcontainer
60%
All versions
Vendor states this is fixed in 1778867753 (unaffected)
Vendor states this is fixed in 1779212259 (unaffected)
Vendor states this is fixed in 1779579439 (unaffected)
Vendor states this is fixed in 1779925273 (unaffected)
Vendor states this is fixed in 1780167118 (unaffected)
OpenShift Container Platform· Red Hatcontainer
60%
4
OpenShift Distributed Tracing· Red Hatcontainer
60%
3
Vendor states this is fixed in 1781589494 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (18)

Vendor Advisory
Source: cverecord
https://lists.apache.org/thread/3hsgl1b69wzq3ry39scqbv2dhyl3j52r
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/05/05/3
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://access.redhat.com/errata/RHSA-2026:21769
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://access.redhat.com/errata/RHSA-2026:22347
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://access.redhat.com/errata/RHSA-2026:22423
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://access.redhat.com/errata/RHSA-2026:23345
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://access.redhat.com/errata/RHSA-2026:24503
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://access.redhat.com/errata/RHSA-2026:24539

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-297CWE-295

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