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CVE-2026-42239

CVE-2026-42239 · Budibase auth session cookies are set with httpOnly:false — any XSS can lead to full account takeover

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Budibase is an open-source low-code platform. Prior to version 3.35.10, the budibase:auth cookie containing the JWT session token is set with httpOnly: false at packages/backend-core/src/utils/utils.ts:218. JavaScript can read this cookie via document.cookie. This means every XSS becomes a full account takeover — the attacker steals the JWT and has persistent access to the victim's account. The cookie also lacks secure: true (sent over plaintext HTTP) and sameSite attribute. This issue has been patched in version 3.35.10.

CVSS 8.1 · Élevée · EPSS 0,3% · Correctif disponible

Publication
Mise à jour

Pile logicielle: node

Produits et versions concernés

  • budibase

    Versions du logiciel
    • < 3.35.10: Concernée

    Aucun correctif publié

  • @budibase/backend-core npm

    Plages de versions concernées
    • SEMVER: < 3.35.10

    Mettez à jour vers 3.35.10

Sources originales

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