CVE-2026-111808 (GCVE-0-2026-111808)

Vulnerability from cvelistv5 – Published: 2026-10-21 19:11 – Updated: 2026-10-21 19:11
VLAI
Title
Apache Traffic Server: HTTP/2 DATA frame padding underflow lets a client trigger backend worker-pool exhaustion
Summary
Apache Traffic Server can be used to exhaust an HTTP/1.1 origin's worker pool via a malformed padded HTTP/2 DATA frame. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.15, from 10.0.0 through 10.1.4, 10.2.0. Users are recommended to upgrade to version 9.2.16, 10.1.5, or 10.2.1, which fix the issue.
Severity
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
7.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H
CWE
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
apache CNA under the mitre root
CNA scorecard B 76/100 over 1087 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Apache Software Foundation Apache Traffic Server Affected: 8.0.0 , ≤ 8.1.11 (semver)
Affected: 9.0.0 , ≤ 9.2.15 (semver)
Affected: 10.0.0 , ≤ 10.1.4 (semver)
Affected: 10.2.0 (semver)
guessed Create a notification for this product.
Credits
Khalilov Moe (LeetProtect) The ASF
Show details on NVD website
To clipboard 

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