Skip to content
CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-111817

Apache Traffic Server: Dropping chunked trailers stalls a passthrough transfer until timeout

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
apache

Description

Apache Traffic Server can stall a chunked transfer that it passes through with its trailers removed (proxy.config.http.drop_chunked_trailers) until the connection times out, because it waits for the trailer bytes it has already dropped. Trailer dropping is on by default in 10.x. In 8.1.11 and 9.2.x it is off by default, and those versions are affected only if it is enabled. This issue affects Apache Traffic Server: 8.1.11, from 9.2.5 through 9.2.15, from 10.0.0 through 10.1.4, 10.2.0. Users are recommended to upgrade to version 10.1.5 or 10.2.1, 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

  • 8.1.11affected
  • 9.2.5 to ≤ 9.2.15affected
  • 10.0.0 to ≤ 10.1.4affected
  • 10.2.0affected

References