Apache Thrift up to 0.23.x TCompactProtocol infinite loop

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.75

Summaryinfo

A vulnerability identified as problematic has been detected in Apache Thrift up to 0.23.x. Affected by this issue is some unknown functionality of the component TCompactProtocol. This manipulation causes infinite loop. The identification of this vulnerability is CVE-2026-43871. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Apache Thrift up to 0.23.x. Affected by this vulnerability is some unknown functionality of the component TCompactProtocol. The manipulation with an unknown input leads to a infinite loop vulnerability. The CWE definition for the vulnerability is CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. As an impact it is known to affect availability.

The advisory is shared at lists.apache.org. This vulnerability is known as CVE-2026-43871. The exploitation appears to be easy. Neither technical details nor an exploit are publicly available.

Upgrading to version 0.24.0 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Infinite loop
CWE: CWE-835 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Thrift 0.24.0

Timelineinfo

07/26/2026 Advisory disclosed
07/26/2026 +0 days VulDB entry created
07/26/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: apache.org

Advisory: lists.apache.org
Status: Confirmed

CVE: CVE-2026-43871 (🔒)
GCVE (CVE): GCVE-0-2026-43871
GCVE (VulDB): GCVE-100-383329

Entryinfo

Created: 07/26/2026 18:21
Changes: 07/26/2026 18:21 (52)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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