p PatchFirst

CVE-2026-78667

CVE-2026-78667 · Lack of limit on size of parsed Range headers in net/http

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

This page shows selected source facts. See the linked advisories for the complete description and affected versions.

When parsing a Range header containing a large number of small ranges, FileServer(FS), ServeContent, and ServeFile(FS) can consume an excessive amount of CPU.

CVSS 7.5 · High · EPSS 0.5% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • net/http

    Versions
    • ≥ 0, < 1.26.9: Affected (semver)
    • ≥ 1.27.0-0, < 1.27.2: Affected (semver)

    Update to 1.26.9; Update to 1.27.2

  • golang-1.19 Debian:12

    Versions
    • 1.19.10-1
    • 1.19.10-2
    • 1.19.11-1
    • 1.19.12-1
    • 1.19.12-2
    • 1.19.12-2~bpo11+1
    • 1.19.12-2~bpo12+1
    • 1.19.13-1
    • 1.19.13-1~bpo11+1
    • 1.19.13-1~bpo12+1
    • 1.19.8-2
    • 1.19.9-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.24 Debian:13

    Versions
    • 1.24.12-1
    • 1.24.13-1
    • 1.24.13-2
    • 1.24.4-1
    • 1.24.4-2
    • 1.24.4-3
    • 1.24.4-4
    • 1.24.7-1
    • 1.24.8-1
    • 1.24.9-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.26 Debian:14

    Versions
    • 1.26.0-1
    • 1.26.1-1
    • 1.26.2-1
    • 1.26.2-2
    • 1.26.2-3
    • 1.26.3-1
    • 1.26.3-1~bpo13+1
    • 1.26.3-2
    • 1.26.3-2~bpo13+1
    • 1.26.4-1
    • 1.26.4-1~bpo13+1
    • 1.26.5-1
    • 1.26.5-1~bpo13+1
    • 1.26.6-1
    • 1.26.6-2
    • 1.26.7-1
    • 1.26.7-1~bpo13+1
    • 1.26.8-1
    • 1.26.8-1~bpo13+1
    • 1.26.8-2
    • 1.26~rc2-1
    • 1.26~rc3-1
    • 1.26~rc3-2
    Affected ranges
    • ECOSYSTEM: < 1.26.9-1

    Update to 1.26.9-1

  • golang-1.27 Debian:14

    Versions
    • 1.27.0-1
    • 1.27.0-1~bpo13+1
    • 1.27.1-1
    • 1.27.1-2
    • 1.27.1-2~bpo13+1
    • 1.27~rc1-1
    • 1.27~rc2-1
    • 1.27~rc3-1
    Affected ranges
    • ECOSYSTEM: < 1.27.2-1

    Update to 1.27.2-1

  • golang-1.10 Ubuntu:14.04:LTS

    Versions
    • 1.10.4-2ubuntu1~14.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.10 Ubuntu:16.04:LTS

    Versions
    • 1.10.4-2ubuntu1~16.04.1
    • 1.10.4-2ubuntu1~16.04.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.6 Ubuntu:16.04:LTS

    Versions
    • 1.6-0ubuntu1
    • 1.6-0ubuntu2
    • 1.6-0ubuntu3
    • 1.6-0ubuntu4
    • 1.6-0ubuntu5
    • 1.6.1-0ubuntu1
    • 1.6.2-0ubuntu5~16.04
    • 1.6.2-0ubuntu5~16.04.2
    • 1.6.2-0ubuntu5~16.04.3
    • 1.6.2-0ubuntu5~16.04.4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.13 Ubuntu:Pro:16.04:LTS

    Versions
    • 1.13.8-1ubuntu1~16.04.2
    • 1.13.8-1ubuntu1~16.04.3
    • 1.13.8-1ubuntu1~16.04.3+esm2
    • 1.13.8-1ubuntu1~16.04.3+esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.18 Ubuntu:Pro:16.04:LTS

    Versions
    • 1.18.1-1ubuntu1~16.04.6
    • 1.18.1-1ubuntu1~16.04.6+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.10 Ubuntu:18.04:LTS

    Versions
    • 1.10~rc1-1
    • 1.10~rc1-1ubuntu1
    • 1.10~rc1-2ubuntu1
    • 1.10~rc2-1ubuntu1
    • 1.10-1ubuntu1
    • 1.10.1-1ubuntu2
    • 1.10.4-2ubuntu1~18.04.1
    • 1.10.4-2ubuntu1~18.04.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.13 Ubuntu:Pro:18.04:LTS

    Versions
    • 1.13.8-1ubuntu1~18.04.2
    • 1.13.8-1ubuntu1~18.04.3
    • 1.13.8-1ubuntu1~18.04.4
    • 1.13.8-1ubuntu1~18.04.4+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.16 Ubuntu:Pro:18.04:LTS

    Versions
    • 1.16.2-0ubuntu1~18.04.2
    • 1.16.2-0ubuntu1~18.04.2+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.18 Ubuntu:Pro:18.04:LTS

    Versions
    • 1.18.1-1ubuntu1~18.04.3
    • 1.18.1-1ubuntu1~18.04.4
    • 1.18.1-1ubuntu1~18.04.4+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.8 Ubuntu:18.04:LTS

    Versions
    • 1.8.3-2ubuntu1
    • 1.8.3-2ubuntu1.18.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.9 Ubuntu:18.04:LTS

    Versions
    • 1.9.1-2ubuntu1
    • 1.9.2-1ubuntu1
    • 1.9.2-3ubuntu1
    • 1.9.3-1ubuntu1
    • 1.9.4-1ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.13 Ubuntu:20.04:LTS

    Versions
    • 1.13.1-1ubuntu1
    • 1.13.3-1ubuntu1
    • 1.13.4-1ubuntu1
    • 1.13.5-1ubuntu1
    • 1.13.6-1ubuntu1
    • 1.13.6-2ubuntu1
    • 1.13.7-1ubuntu1
    • 1.13.8-1ubuntu1
    • 1.13.8-1ubuntu1.1
    • 1.13.8-1ubuntu1.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.14 Ubuntu:20.04:LTS

    Versions
    • 1.14~beta1-1
    • 1.14~beta1-2
    • 1.14~rc1-1
    • 1.14-1
    • 1.14.1-1
    • 1.14.2-1
    • 1.14.2-1ubuntu1
    • 1.14.3-2ubuntu2~20.04.1
    • 1.14.3-2ubuntu2~20.04.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.16 Ubuntu:Pro:20.04:LTS

    Versions
    • 1.16.2-0ubuntu1~20.04
    • 1.16.2-0ubuntu1~20.04.1
    • 1.16.2-0ubuntu1~20.04.1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.18 Ubuntu:20.04:LTS

    Versions
    • 1.18.1-1ubuntu1~20.04.1
    • 1.18.1-1ubuntu1~20.04.2
    • 1.18.1-1ubuntu1~20.04.3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.20 Ubuntu:20.04:LTS

    Versions
    • 1.20.3-1ubuntu0.1~20.04
    • 1.20.3-1ubuntu0.1~20.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.21 Ubuntu:20.04:LTS

    Versions
    • 1.21.1-1~ubuntu20.04.1
    • 1.21.1-1~ubuntu20.04.2
    • 1.21.1-1~ubuntu20.04.3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.17 Ubuntu:22.04:LTS

    Versions
    • 1.17-1ubuntu2
    • 1.17.3-1ubuntu1
    • 1.17.3-1ubuntu2
    • 1.17.13-3ubuntu1
    • 1.17.13-3ubuntu1.2
    • 1.17.13-3ubuntu1.3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • golang-1.18 Ubuntu:22.04:LTS

    Versions
    • 1.18~beta1-0ubuntu1
    • 1.18~beta2-1ubuntu1
    • 1.18~beta2-1ubuntu2
    • 1.18~rc1-1ubuntu1
    • 1.18-1ubuntu1
    • 1.18.1-1ubuntu1
    • 1.18.1-1ubuntu1.1
    • 1.18.1-1ubuntu1.2
    • 1.18.1-1ubuntu1.3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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