What is the CVSS score of CVE-2026-43869?

CVE-2026-43869 has a CVSS 3.1 base score of 7.3 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L. EPSS exploitation probability: 0.0%.

Which versions of Apache Thrift are affected by CVE-2026-43869?

Apache Thrift Java versions before 0.23.0 disable TLS hostname verification, allowing attackers to intercept and modify encrypted communications between applications and Thrift services without…. A patch is available.

Apache Thrift CVE-2026-43869

EUVD-2026-27237 HIGH

Improper Validation of Certificate with Host Mismatch (CWE-297)

2026-05-05

GHSA-7pwc-h2j2-rjgj

Apache Java Information Disclosure Node.js

7.3

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Analysis Generated

May 06, 2026 - 16:30 vuln.today

CVSS changed

May 06, 2026 - 14:22 NVD

7.3 (HIGH)

Patch available

May 05, 2026 - 09:01 EUVD

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

432 maven packages depend on org.apache.thrift:libthrift (19 direct, 413 indirect)

Ecosystem-wide dependent count for version 0.22.0.

Description PRE-NVD

Disclosed via oss-security. NVD scoring and full description are pending.

AnalysisAI

TLS hostname verification is disabled in Apache Thrift's Java TSSLTransportFactory implementation (versions prior to 0.23.0), allowing remote unauthenticated attackers to perform man-in-the-middle attacks against encrypted communications. The vulnerability enables interception and potential modification of data in transit with low attack complexity and no user interaction required. …

RemediationAI

Within 24 hours: Identify all applications and services using Apache Thrift Java in your environment and document current versions. Within 7 days: Upgrade Apache Thrift Java to version 0.23.0 or later across development, staging, and production systems; validate SSL/TLS hostname verification is enabled post-upgrade. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-43869 vulnerability details – vuln.today

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