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CVE-2026-33930 (GCVE-0-2026-33930)

Vulnerability from cvelistv5 – Published: 2026-07-29 07:23 – Updated: 2026-07-29 13:11
VLAI
Title
Apache Traffic Server: Buffer overflow via Host field that has a long string value
Summary
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.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
8.2 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 13:10 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version CPE status
Apache Software Foundation Apache Traffic Server Affected: 8.0.0 , ≤ 8.1.9 (semver)
Affected: 9.0.0 , ≤ 9.2.14 (semver)
Affected: 10.0.0 , ≤ 10.1.3 (semver)
guessed Create a notification for this product.
Credits
Pengpeng Hou
Show details on NVD website
To clipboard 

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