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CVE-2026-111809

CVE-2026-111809 · Apache Traffic Server: HEAD requests carrying Content-Length or Transfer-Encoding enable request smuggling

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Apache Traffic Server allows request smuggling via HEAD requests that carry Content-Length or Transfer-Encoding. 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.

CVSS 6.9 · Medium · EPSS 0.2%

Published
Updated

Stack: system

Affected products and versions

  • apache traffic server

    Versions
    • ≥ 8.0.0, ≤ 8.1.11: Affected (semver)
    • ≥ 9.0.0, ≤ 9.2.15: Affected (semver)
    • ≥ 10.0.0, ≤ 10.1.4: Affected (semver)
    • 10.2.0: Affected (semver)

    No fix published

  • trafficserver Debian:12

    Versions
    • 9.2.0+ds-2
    • 9.2.0+ds-2+deb12u1
    • 9.2.1+ds-1
    • 9.2.2+ds-1
    • 9.2.3+ds-1
    • 9.2.3+ds-1+deb12u1
    • 9.2.4+ds-0+deb12u1
    • 9.2.4+ds-1
    • 9.2.4+ds-2
    • 9.2.5+ds-0+deb12u1
    • 9.2.5+ds-0+deb12u2
    • 9.2.5+ds-0+deb12u3
    • 9.2.5+ds-0+deb12u4
    • 9.2.5+ds-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • trafficserver Ubuntu:16.04:LTS

    Versions
    • 5.3.0-2ubuntu1
    • 5.3.0-2ubuntu2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • trafficserver Ubuntu:18.04:LTS

    Versions
    • 7.0.0-5
    • 7.1.2+ds-2
    • 7.1.2+ds-2build1
    • 7.1.2+ds-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • trafficserver Ubuntu:Pro:20.04:LTS

    Versions
    • 8.0.5+ds-1
    • 8.0.5+ds-2
    • 8.0.5+ds-2build1
    • 8.0.5+ds-2ubuntu1
    • 8.0.5+ds-3
    • 8.0.5+ds-3ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • trafficserver Ubuntu:Pro:22.04:LTS

    Versions
    • 8.1.1+ds-1.1
    • 9.1.1+ds-2build1
    • 9.1.1+ds-2ubuntu0.1~esm1
    • 9.1.1+ds-2ubuntu0.1
    • 9.1.1+ds-2ubuntu0.1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • trafficserver Ubuntu:24.04:LTS

    Versions
    • 9.2.1+ds-1build1
    • 9.2.2+ds-1
    • 9.2.3+ds-1
    • 9.2.3+ds-1+deb12u1
    • 9.2.3+ds-1+deb12u1build1
    • 9.2.3+ds-1+deb12u1build3
    • 9.2.3+ds-1+deb12u1build4
    • 9.2.3+ds-1+deb12u1ubuntu0.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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