Debian Linux - ceph - None

Red Hat Enterprise Linux - kernel: ceph: kernel: Ceph: exploit of hardcoded IVECs, in a misuse of AES, resulting in authentication bypass

Ubuntu Linux - [Unknown description]

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-7de7d03796 advisory.

    # Ceph 20.2.4 GA

    * CVE-2025-30156 is an authentication bypass in CephX caused by misuse of AES-CBC.
    >    https://docs.ceph.com/en/latest/security/CVE-2025-30156
    * CVE-2026-39944 shares the unauthenticated-encryption root cause of CVE-2025-30156     >    https://docs.ceph.com/en/latest/security/CVE-2026-39944
    * CVE-2026-50152 is an improper authorization flaw in the Ceph Monitor subscription handler.
    >    https://docs.ceph.com/en/latest/security/CVE-2026-50152
    * CVE-2026-54330 is a flaw in RGW not properly verifying its SigV4 cryptographic signatures in RGW's SigV4     verifier.
    >    https://docs.ceph.com/en/latest/security/CVE-2026-54330



Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-ebffec502b advisory.

    # Ceph 19.2.6 GA

    * CVE-2025-30156 is an authentication bypass in CephX caused by misuse of AES-CBC.
    >    https://docs.ceph.com/en/latest/security/CVE-2025-30156
    * CVE-2026-39944 shares the unauthenticated-encryption root cause of CVE-2025-30156     >    https://docs.ceph.com/en/latest/security/CVE-2026-39944
    * CVE-2026-50152 is an improper authorization flaw in the Ceph Monitor subscription handler.
    >    https://docs.ceph.com/en/latest/security/CVE-2026-50152
    * CVE-2026-54330 is a flaw in RGW not properly verifying its SigV4 cryptographic signatures in RGW's SigV4     verifier.
    >    https://docs.ceph.com/en/latest/security/CVE-2026-54330


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Debian Linux - ceph - None  Red Hat Enterprise Linux - kernel: ceph: kernel: Ceph: exploit of hardcoded     IVECs, in a misuse of AES, resulting in authentication bypass  Ubuntu Linux - [Unknown description]     (CVE-2025-30156)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
338829	Fedora 44 : ceph (2026-7de7d03796)	Nessus	Fedora Local Security Checks	Local	critical
338789	Fedora 43 : ceph (2026-ebffec502b)	Nessus	Fedora Local Security Checks	Local	critical
338279	Linux Distros Unpatched Vulnerability : CVE-2025-30156	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2025-30156

critical

Tenable Plugins

critical

critical

high