CVE-2024-48916
published 2025-07-30CVE-2024-48916: 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…
PriorityP347high8.1CVSS 3.1
AVNACLPRLUINSUCHIHAN
EPSS
0.19%
9.1th percentile
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.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| ceph | ceph | <= 19.2.3 | — |
| ceph | ceph | >= 0 < 16.2.15+ds-0+deb12u1 | 16.2.15+ds-0+deb12u1 |
| ceph | ceph | >= 0 < 18.2.4+ds-11 | 18.2.4+ds-11 |
| ceph | ceph | >= 0 < 18.2.4+ds-11 | 18.2.4+ds-11 |
| debian | ceph | < ceph 16.2.15+ds-0+deb12u1 (bookworm) | ceph 16.2.15+ds-0+deb12u1 (bookworm) |
| msrc | azl3_ceph_18.2.2-10_on_azure_linux_3.0 | — | — |
| msrc | azl3_ceph_18.2.2-9_on_azure_linux_3.0 | — | — |
| msrc | cbl2_ceph_16.2.10-8_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_ceph_16.2.10-9_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.18.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
osv8.1HIGH
vendor_debian8.1HIGH
vendor_msrc8.1HIGH
vendor_redhat8.1HIGH
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Microsoft
Ceph is vulnerable to authentication bypass through RadosGW
vendor_msrc·2025-07-08·CVSS 8.1
CVE-2024-48916 [HIGH] CWE-345 Ceph is vulnerable to authentication bypass through RadosGW
Ceph is vulnerable to authentication bypass through RadosGW
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
GitHub_M: GitHub_M
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: htt
Ubuntu
Ceph vulnerability
vendor_ubuntu·2025-01-06
CVE-2024-48916 Ceph vulnerability
Title: Ceph vulnerability
Summary: Ceph could allow unintended access to network services.
It was discovered that Ceph incorrectly handled unsupported JWT algorithms
in the RadosGW gateway. An attacker could possibly use this issue to bypass
certain authentication checks and restrictions.
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
ceph: rhceph-container: Authentication bypass in CEPH RadosGW
vendor_redhat·2024-12-02·CVSS 8.1
CVE-2024-48916 [HIGH] CWE-345 ceph: rhceph-container: Authentication bypass in CEPH RadosGW
ceph: rhceph-container: Authentication bypass in CEPH RadosGW
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.
A vulnerability in the Ceph Rados Gateway (RadosGW) OIDC provider allows attackers to bypass JWT signature verification by supplying a token with "none" as the algorithm (alg). This occurs because the implementation fails to enforce strict signature validation, enabling attackers to forge valid tokens without a signature.
Statement: This vulnerability is rated Important due to its ability to
Debian
CVE-2024-48916: ceph - Ceph is a distributed object, block, and file storage platform. In versions 19.2...
vendor_debian·2024·CVSS 8.1
CVE-2024-48916 [HIGH] CVE-2024-48916: ceph - Ceph is a distributed object, block, and file storage platform. In versions 19.2...
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.
Scope: local
bookworm: resolved (fixed in 16.2.15+ds-0+deb12u1)
bullseye: resolved
forky: resolved (fixed in 18.2.4+ds-11)
sid: resolved (fixed in 18.2.4+ds-11)
trixie: resolved (fixed in 18.2.4+ds-11)
OSV
CVE-2024-48916: Ceph is a distributed object, block, and file storage platform
osv·2025-07-30·CVSS 8.1
CVE-2024-48916 [HIGH] CVE-2024-48916: Ceph is a distributed object, block, and file storage platform
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-07-30
Published