CVE-2026-58187: CWE-787 Out-of-bounds Write in Apache Software Foundation Apache Traffic Server
The Apache Traffic Server multiplexer plugin overruns its chunk-decode buffer on upstream input, enabling denial of service. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.
AI Analysis
Technical Summary
The Apache Traffic Server multiplexer plugin contains a CWE-787 out-of-bounds write vulnerability in its chunk-decode buffer when handling upstream input. This buffer overrun can cause a denial of service condition. The vulnerability affects Apache Traffic Server versions from 8.0.0 through 8.1.9, 9.0.0 through 9.2.14, and 10.0.0 through 10.1.3. The issue is resolved by upgrading to versions 9.2.15 or 10.1.4.
Potential Impact
Successful exploitation of this vulnerability can cause a denial of service by crashing or destabilizing the Apache Traffic Server process. There is no impact on confidentiality or integrity as per the CVSS vector. The attack complexity is high, and no privileges or user interaction are required.
Mitigation Recommendations
Users should upgrade affected Apache Traffic Server installations to version 9.2.15 or 10.1.4, which contain fixes for this vulnerability. No other mitigation or temporary workaround is specified. Patch status is confirmed by the vendor advisory recommending these versions.
CVE-2026-58187: CWE-787 Out-of-bounds Write in Apache Software Foundation Apache Traffic Server
Description
The Apache Traffic Server multiplexer plugin overruns its chunk-decode buffer on upstream input, enabling denial of service. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.
CVSS v3.1
Score 3.7low
Affected software
Apache Software Foundation
Apache Traffic Server
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Apache Traffic Server multiplexer plugin contains a CWE-787 out-of-bounds write vulnerability in its chunk-decode buffer when handling upstream input. This buffer overrun can cause a denial of service condition. The vulnerability affects Apache Traffic Server versions from 8.0.0 through 8.1.9, 9.0.0 through 9.2.14, and 10.0.0 through 10.1.3. The issue is resolved by upgrading to versions 9.2.15 or 10.1.4.
Potential Impact
Successful exploitation of this vulnerability can cause a denial of service by crashing or destabilizing the Apache Traffic Server process. There is no impact on confidentiality or integrity as per the CVSS vector. The attack complexity is high, and no privileges or user interaction are required.
Mitigation Recommendations
Users should upgrade affected Apache Traffic Server installations to version 9.2.15 or 10.1.4, which contain fixes for this vulnerability. No other mitigation or temporary workaround is specified. Patch status is confirmed by the vendor advisory recommending these versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-06-29T16:35:39.110Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a69c9f59c2644c7f8487ee5
Added to database: 07/29/2026, 09:37:57 UTC
Last enriched: 07/29/2026, 10:24:08 UTC
Last updated: 09/12/2026, 10:01:32 UTC
Views: 74
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