CVE-2026-111810: CWE-400 Uncontrolled Resource Consumption in Apache Software Foundation Apache Traffic Server
Description
CVE-2026-111810 is a high-severity vulnerability in Apache Traffic Server versions 9.2.15, 10.1.4, and 10.2.0. The issue involves uncontrolled resource consumption due to unthrottled logging of diagnostic lines for each internal @ header stripped from requests. This can cause excessive log data generation, impacting availability. Fixed versions 9.2.16, 10.1.5, and 10.2.1 address this problem.
CVSS v3.1
Score 7.5high
Affected software
Apache Software Foundation
Apache Traffic Server
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Apache Traffic Server versions 9.2.15, 10.1.4, and 10.2.0 have a CWE-400 uncontrolled resource consumption vulnerability. The server writes one unthrottled diagnostic log line for every internal @ header stripped from incoming requests. If a request contains many such headers, the proxy generates significantly more log data than the request itself, potentially leading to resource exhaustion. This vulnerability has a CVSS 3.1 score of 7.5 (high severity) with network attack vector, low attack complexity, no privileges required, no user interaction, and impacts availability only. Upgrading to versions 9.2.16, 10.1.5, or 10.2.1 mitigates the issue.
Potential Impact
The vulnerability can cause excessive log data generation, leading to uncontrolled resource consumption and potential denial of service by exhausting system resources related to logging. There is no impact on confidentiality or integrity. No known exploits in the wild have been reported.
Mitigation Recommendations
Users should upgrade Apache Traffic Server to versions 9.2.16, 10.1.5, or 10.2.1, which contain fixes for this vulnerability. No other mitigation or temporary workaround is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-10-16T20:21:06.042Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad912f44d27ba8daae7aa0e
Added to database: 10/21/2026, 19:31:00 UTC
Last enriched: 10/21/2026, 19:45:27 UTC
Last updated: 10/21/2026, 19:46:44 UTC
Views: 3
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