Apache Thrift up to 0.22.x TSSLTransportFactory.java certificate host validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apache Thrift up to 0.22.x. The affected element is an unknown function of the file TSSLTransportFactory.java. The manipulation leads to certificate host validation. This vulnerability is listed as CVE-2026-43869. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apache Thrift up to 0.22.x and classified as problematic. This issue affects an unknown functionality of the file TSSLTransportFactory.java. The manipulation with an unknown input leads to a certificate host validation vulnerability. Using CWE to declare the problem leads to CWE-297. The product communicates with a host that provides a certificate, but the product does not properly ensure that the certificate is actually associated with that host. Impacted is integrity. The summary by CVE is:

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.

It is possible to read the advisory at lists.apache.org. The identification of this vulnerability is CVE-2026-43869. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/02/2026). The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 312239 (Linux Distros Unpatched Vulnerability : CVE-2026-43869), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.23.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (312239) and EUVD (EUVD-2026-27237). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 7.3
ADP CISA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Certificate host validation
CWE: CWE-297 / CWE-295 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 312239
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-43869

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Thrift 0.23.0

Timelineinfo

05/05/2026 Advisory disclosed
05/05/2026 +0 days VulDB entry created
07/02/2026 +58 days VulDB entry last update

Sourcesinfo

Vendor: apache.org

Advisory: lists.apache.org
Status: Confirmed

CVE: CVE-2026-43869 (🔒)
GCVE (CVE): GCVE-0-2026-43869
GCVE (VulDB): GCVE-100-361103
EUVD: 🔒

Entryinfo

Created: 05/05/2026 07:09
Updated: 07/02/2026 09:47
Changes: 05/05/2026 07:09 (52), 05/05/2026 11:19 (1), 05/06/2026 07:13 (2), 07/02/2026 09:47 (12)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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