FKIE_CVE-2026-26104

Vulnerability from fkie_nvd - Published: 2026-02-25 11:16 - Updated: 2026-03-25 19:16
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
A flaw was found in the udisks storage management daemon that allows unprivileged users to back up LUKS encryption headers without authorization. The issue occurs because a privileged D-Bus method responsible for exporting encryption metadata does not perform a policy check. As a result, sensitive cryptographic metadata can be read and written to attacker-controlled locations. This weakens the confidentiality guarantees of encrypted storage volumes.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:3476
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2026:5831
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2026-26104Vendor Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2433717Issue Tracking, Vendor Advisory
secalert@redhat.comhttps://github.com/storaged-project/udisks/security/advisories/GHSA-fcvx-497g-6xmw
Impacted products
Vendor Product Version
redhat enterprise_linux 10.0
freedesktop udisks 2.0.0
To clipboard 

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      "value": "A flaw was found in the udisks storage management daemon that allows unprivileged users to back up LUKS encryption headers without authorization. The issue occurs because a privileged D-Bus method responsible for exporting encryption metadata does not perform a policy check. As a result, sensitive cryptographic metadata can be read and written to attacker-controlled locations. This weakens the confidentiality guarantees of encrypted storage volumes."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 una falla en el demonio de gesti\u00f3n de almacenamiento udisks que permite a usuarios sin privilegios hacer una copia de seguridad de los encabezados de cifrado LUKS sin autorizaci\u00f3n. El problema ocurre porque un m\u00e9todo D-Bus privilegiado responsable de exportar metadatos de cifrado no realiza una verificaci\u00f3n de pol\u00edtica. Como resultado, los metadatos criptogr\u00e1ficos sensibles pueden ser le\u00eddos y escritos en ubicaciones controladas por el atacante. Esto debilita las garant\u00edas de confidencialidad de los vol\u00famenes de almacenamiento cifrados."
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  "id": "CVE-2026-26104",
  "lastModified": "2026-03-25T19:16:48.227",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
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  "published": "2026-02-25T11:16:03.193",
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      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:3476"
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