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CVE-2026-77806

CVE-2026-77806

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

SPIP before 4.4.21 allows unauthenticated remote attackers to execute arbitrary code, as exploited in the wild in August 2026. This is related to code injection via an X-Spip-Filtre HTTP request header that is mishandled by analyse_resultat_skel.

CVSS 9.8 · Critical · EPSS 4.5% · Public exploit · Fix available

Published
Updated

Stack: system

Affected products and versions

  • spip

    Versions
    • ≥ 0, < 4.4.21: Affected (semver)

    Update to 4.4.21

  • spip Debian:13

    Versions
    • 4.4.10+dfsg-1
    • 4.4.11+dfsg-0+deb13u1
    • 4.4.11+dfsg-1
    • 4.4.13+dfsg-0+deb13u1
    • 4.4.13+dfsg-1
    • 4.4.14+dfsg-1
    • 4.4.15+dfsg-0+deb13u1
    • 4.4.15+dfsg-1
    • 4.4.16+dfsg-0+deb13u1
    • 4.4.16+dfsg-1
    • 4.4.18+dfsg-1
    • 4.4.19+dfsg-0+deb13u1
    • 4.4.19+dfsg-1
    • 4.4.20+dfsg-0+deb13u1
    • 4.4.20+dfsg-1
    • 4.4.3+dfsg-1
    • 4.4.3+dfsg-1+deb13u1
    • 4.4.4+dfsg-1
    • 4.4.5+dfsg-1
    • 4.4.6+dfsg-1
    • 4.4.7+dfsg-1
    • 4.4.8+dfsg-1
    • 4.4.9+dfsg-1
    Affected ranges
    • ECOSYSTEM: < 4.4.21+dfsg-0+deb13u1

    Update to 4.4.21+dfsg-0+deb13u1

  • spip Debian:14

    Versions
    • 4.4.10+dfsg-1
    • 4.4.11+dfsg-1
    • 4.4.13+dfsg-1
    • 4.4.14+dfsg-1
    • 4.4.15+dfsg-1
    • 4.4.16+dfsg-1
    • 4.4.18+dfsg-1
    • 4.4.19+dfsg-1
    • 4.4.20+dfsg-1
    • 4.4.3+dfsg-1
    • 4.4.4+dfsg-1
    • 4.4.5+dfsg-1
    • 4.4.6+dfsg-1
    • 4.4.7+dfsg-1
    • 4.4.8+dfsg-1
    • 4.4.9+dfsg-1
    Affected ranges
    • ECOSYSTEM: < 4.4.21+dfsg-1

    Update to 4.4.21+dfsg-1

  • spip Ubuntu:Pro:16.04:LTS

    Versions
    • 3.0.20-1
    • 3.0.21-1
    • 3.0.21-1ubuntu1
    • 3.0.21-1ubuntu1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • spip Ubuntu:Pro:18.04:LTS

    Versions
    • 3.1.4-3
    • 3.1.4-4~deb9u3build0.18.04.1
    • 3.1.4-4~deb9u5build0.18.04.1
    • 3.1.4-4~deb9u5ubuntu0.1~esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • spip Ubuntu:Pro:20.04:LTS

    Versions
    • 3.2.4-1
    • 3.2.5-1
    • 3.2.7-1
    • 3.2.7-1ubuntu0.1
    • 3.2.7-1ubuntu0.1+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • spip Ubuntu:22.04:LTS

    Versions
    • 3.2.11-3
    • 3.2.12-1
    • 4.0.2-1
    • 4.0.4-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • spip Ubuntu:24.04:LTS

    Versions
    • 4.1.11+dfsg-1
    • 4.1.12+dfsg-1
    • 4.1.13+dfsg-1
    • 4.1.15+dfsg-1
    • 4.2.9+dfsg-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • spip Ubuntu:26.04:LTS

    Versions
    • 4.4.3+dfsg-1
    • 4.4.6+dfsg-1
    • 4.4.7+dfsg-1
    • 4.4.8+dfsg-1
    • 4.4.9+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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