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CVE-2026-40460

CVE-2026-40460 · NGINX ngx_quic_module vulnerability

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

When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS 6.9 · Medium · EPSS 0.4% · Fix available

Published
Updated

Stack: system · web

Affected products and versions

  • nginx plus

    Versions
    • ≥ R37: Not affected (custom)
    • ≥ R36, < R36 P4: Affected (custom)
    • ≥ R32, < R32 P6: Affected (custom)

    No fix published

  • nginx

    Versions
    • ≥ 1.31.0: Not affected (semver)
    • ≥ 1.26.0, < 1.30.1: Affected (semver)

    Update to 1.30.1

  • nginx Debian:13

    Versions
    • 1.26.3-3
    • 1.26.3-3+deb13u1
    • 1.26.3-3+deb13u2
    • 1.26.3-3+deb13u3
    • 1.26.3-3+deb13u4
    Affected ranges
    • ECOSYSTEM: < 1.26.3-3+deb13u5

    Update to 1.26.3-3+deb13u5

  • nginx Debian:14

    Versions
    • 1.26.3-3
    • 1.28.0-1
    • 1.28.0-2
    • 1.28.0-3
    • 1.28.0-4
    • 1.28.0-5
    • 1.28.0-6
    • 1.28.1-1
    • 1.28.1-2
    • 1.28.1-3
    • 1.28.2-1
    • 1.28.2-2
    • 1.28.2-3
    • 1.28.2-4
    • 1.28.3-1
    • 1.28.3-2
    • 1.30.0-1
    • 1.30.0-2
    • 1.30.0-3
    Affected ranges
    • ECOSYSTEM: < 1.30.0-4

    Update to 1.30.0-4

  • nginx Ubuntu:25.10

    Versions
    • 1.26.3-2ubuntu1
    • 1.26.3-3ubuntu1
    • 1.26.3-3ubuntu2
    • 1.26.3-3ubuntu3
    • 1.28.0-3ubuntu1
    • 1.28.0-4ubuntu1
    • 1.28.0-6ubuntu1
    • 1.28.0-6ubuntu1.1
    • 1.28.0-6ubuntu1.2
    • 1.28.0-6ubuntu1.3
    Affected ranges
    • ECOSYSTEM: < 1.28.0-6ubuntu1.4

    Update to 1.28.0-6ubuntu1.4

  • nginx Ubuntu:26.04:LTS

    Versions
    • 1.28.0-6ubuntu1
    • 1.28.1-2ubuntu1
    • 1.28.1-3ubuntu1
    • 1.28.2-2ubuntu1
    • 1.28.3-2ubuntu1
    • 1.28.3-2ubuntu1.1
    Affected ranges
    • ECOSYSTEM: < 1.28.3-2ubuntu1.2

    Update to 1.28.3-2ubuntu1.2

Original sources

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