CVE-2026-33930: CWE-121 Stack-based Buffer Overflow in Apache Software Foundation Apache Traffic Server
Apache Traffic Server copies the client Host header into a fixed-size stack buffer without a bound during redirect handling, so an over-long Host header overflows the stack when redirect following is enabled. 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.
CVE-2026-33930: CWE-121 Stack-based Buffer Overflow in Apache Software Foundation Apache Traffic Server
Description
Apache Traffic Server copies the client Host header into a fixed-size stack buffer without a bound during redirect handling, so an over-long Host header overflows the stack when redirect following is enabled. 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 5.9medium
Affected software
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-03-24T18:30:58.396Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a69adc79c2644c7f825aa7f
Added to database: 07/29/2026, 07:37:43 UTC
Last updated: 07/29/2026, 09:07:12 UTC
Views: 5
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