CVE-2026-82459: CWE-191 Integer underflow (wrap or wraparound) in Apache Software Foundation Apache Thrift
CVE-2026-82459 is a high-severity vulnerability in Apache Thrift affecting versions before 0.25.0. It involves an integer underflow leading to an out-of-bounds write in the 32-bit THeaderTransport component. The issue is fixed in version 0.25.0, and users are advised to upgrade to this version to mitigate the risk.
AI Analysis
Technical Summary
This vulnerability in Apache Thrift (CVE-2026-82459) is caused by an integer underflow (wrap or wraparound) in the 32-bit THeaderTransport implementation, which results in an out-of-bounds write condition. This flaw affects all versions prior to 0.25.0. The vulnerability has a CVSS 4.0 score of 8.2, indicating high severity, with network attack vector, low attack complexity, no privileges required, no user interaction, and high impact on availability. The Apache Software Foundation has addressed this issue in version 0.25.0.
Potential Impact
Successful exploitation of this vulnerability can lead to an out-of-bounds write, potentially causing application crashes or other availability impacts. The CVSS score of 8.2 reflects a high severity with significant impact on system availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Users should upgrade Apache Thrift to version 0.25.0 or later, where this vulnerability has been fixed. No additional mitigations are specified or required beyond applying the official update.
CVE-2026-82459: CWE-191 Integer underflow (wrap or wraparound) in Apache Software Foundation Apache Thrift
Description
CVE-2026-82459 is a high-severity vulnerability in Apache Thrift affecting versions before 0.25.0. It involves an integer underflow leading to an out-of-bounds write in the 32-bit THeaderTransport component. The issue is fixed in version 0.25.0, and users are advised to upgrade to this version to mitigate the risk.
CVSS v4.0
Score 8.2high
Affected software
Apache Software Foundation
Apache Thrift
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Apache Thrift (CVE-2026-82459) is caused by an integer underflow (wrap or wraparound) in the 32-bit THeaderTransport implementation, which results in an out-of-bounds write condition. This flaw affects all versions prior to 0.25.0. The vulnerability has a CVSS 4.0 score of 8.2, indicating high severity, with network attack vector, low attack complexity, no privileges required, no user interaction, and high impact on availability. The Apache Software Foundation has addressed this issue in version 0.25.0.
Potential Impact
Successful exploitation of this vulnerability can lead to an out-of-bounds write, potentially causing application crashes or other availability impacts. The CVSS score of 8.2 reflects a high severity with significant impact on system availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Users should upgrade Apache Thrift to version 0.25.0 or later, where this vulnerability has been fixed. No additional mitigations are specified or required beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-08-29T13:53:34.479Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6abf99b2a43b0b3b89b26956
Added to database: 10/02/2026, 11:46:58 UTC
Last enriched: 10/02/2026, 12:01:06 UTC
Last updated: 10/02/2026, 12:06:07 UTC
Views: 2
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