Description
Ceph is a distributed object, block, and file storage platform. In versions 19.2.3 and below, it is possible to send an JWT that has "none" as JWT alg. And by doing so the JWT signature is not checked. The vulnerability is most likely in the RadosGW OIDC provider. As of time of publication, a known patched version has yet to be published.
Scores
CVSS v3
8.1
EPSS
0.0004
EPSS Percentile
13.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-345
Status
published
Products (1)
ceph/ceph
<= 19.2.3
Published
Jul 30, 2025
Tracked Since
Feb 18, 2026