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VulnerabilityPublished Updated

CVE-2024-48916: Ceph is vulnerable to authentication bypass through RadosGW

Affects cephSource GCVE Database

0

Not known to be exploited : upgrade to 20.2.1 soon.

Data as of 27 Oct 2026, 00:19 UTC

Severity
High

Rated by Threat Radar · No CVSS score from NVD or the CNA

Patch
Available – fixed in 20.2.1

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade ceph to 20.2.1.

Affected software

ProductAffectedFixed in
Bitnamicephpkg:bitnami/cephOther threatsAffected
  • <20.2.1
Fixed in
  • 20.2.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade Ceph to version 20.2.1 or later, where this vulnerability has been fixed. Until the upgrade is applied, systems remain vulnerable to authentication bypass via crafted JWT tokens.

Description

Ceph versions 19.2.3 and below are vulnerable to an authentication bypass in the RadosGW OIDC provider. The vulnerability allows an attacker to send a JWT token with the algorithm set to "none", bypassing signature verification. This flaw enables unauthorized access due to improper JWT validation. A fix is available in version 20.2.1.

References

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