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CVE PROGRAM SOURCE RECORD9.2 Critical

CVE-2026-58155

Apache Traffic Server: Header-name length truncation enables header aliasing and request smuggling

Description

Apache Traffic Server truncates over-long header names, allowing header aliasing, request smuggling, and policy bypass. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, 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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Apache Software Foundation Apache Traffic Server

Default version status: unaffected

  • 8.0.0 to ≤ 8.1.11affected
  • 9.0.0 to ≤ 9.2.14affected
  • 10.0.0 to ≤ 10.1.3affected

References