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TI-2024-32613 Aliases CVE-2024-48916

Ceph is vulnerable to authentication bypass through RadosGW

Priority HIGH 68CWE-345Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 6 fixed, 2 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-345.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00221 12th percentileScored 2026-11-07
Fix Partial Red Hat: 7 advisoriesRed Hat: 6 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
cephcephup to 19.2.3—No fix listedCNA
  • ceph Vendorceph Affected up to 19.2.3 Fixed in — No fix listed CNA

Remediation

Red Hat 7 advisories

  • RHSA-2026:86618 Released 2026-10-21 · Red Hat rating Critical
    New container image: rhceph-9.2
    • Red Hat Ceph Storage 9.2 registry.redhat.io/rhceph/rhceph-9-rhel10
  • RHSA-2026:79243 Released 2026-10-08 · Red Hat rating Important
    Red Hat Ceph Storage
    • Red Hat Ceph Storage 8.1 registry.redhat.io/rhceph/grafana-rhel9, registry.redhat.io/rhceph/rhceph-8-rhel9
  • RHSA-2026:79101 Released 2026-10-08 · Red Hat rating Important
    Red Hat Ceph Storage 8.1 security and bug fix updates
    • Red Hat Ceph Storage 8.1 Tools ceph-2:19.2.1-423.el9cp, ceph-base-2:19.2.1-423.el9cp, ceph-common-2:19.2.1-423.el9cp +25
Show 4 more Red Hat advisories
  • RHSA-2025:4664 Released 2025-05-07 · Red Hat rating Important
    Red Hat Ceph Storage 7.1 security, bug fix, and enhancement updates
    • Red Hat Ceph Storage 7.1 Tools ceph-2:18.2.1-329.el8cp, ceph-2:18.2.1-329.el9cp, ceph-base-2:18.2.1-329.el8cp +47
  • RHSA-2025:4238 Released 2025-04-28 · Red Hat rating Important
    Red Hat Ceph Storage 6.1 bug fix update
    • Red Hat Ceph Storage 6.1 Tools liboath-2.6.12-1.el8cp, liboath-2.6.12-1.el9cp, oath-toolkit-2.6.12-1.el8cp +1
  • RHSA-2024:10956 Released 2024-12-11 · Red Hat rating Important
    Red Hat Ceph Storage 8.0 security update
    • Red Hat Ceph Storage 8.0 Tools ceph-2:19.2.0-55.el9cp, ceph-base-2:19.2.0-55.el9cp, ceph-common-2:19.2.0-55.el9cp +25
  • RHSA-2024:10957 Released 2024-12-11 · Red Hat rating Important
    Updated 8.0 container image is now available in the Red Hat Ecosystem Catalog.
    • Red Hat Ceph Storage 8.0 Tools rhceph/grafana-rhel9, rhceph/keepalived-rhel9, rhceph/oauth2-proxy-rhel9 +4

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Ceph Storage 4AffectedNo fix planned: Out of support scope
Red Hat Ceph Storage 5AffectedNo fix planned: Out of support scope
Red Hat Ceph Storage 6.1 ToolsFixed RHSA-2025:4238
Red Hat Ceph Storage 7.1 ToolsFixed RHSA-2025:4664
Red Hat Ceph Storage 8.0 ToolsFixed RHSA-2024:10956, RHSA-2024:10957
Red Hat Ceph Storage 8.1Fixed RHSA-2026:79243
Red Hat Ceph Storage 8.1 ToolsFixed RHSA-2026:79101
Red Hat Ceph Storage 9.2Fixed RHSA-2026:86618
Not affected: 8 products
  • Red Hat Ceph Storage 6.1 Tools
  • Red Hat Ceph Storage 7.1 Tools
  • Red Hat Ceph Storage 8.0 Tools
  • Red Hat Ceph Storage 8.1
  • Red Hat Ceph Storage 9.2
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat Openshift Data Foundation 4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-48916
  2. 2026-10-09 Fix available: RHSA-2026:79101 · Red Hat
  3. 2026-10-09 Fix available: RHSA-2026:79243 · Red Hat
  4. 2026-10-09 Fix available: Red Hat Ceph Storage 8.1, Red Hat Ceph Storage 8.1 Tools · Red Hat
  5. 2026-10-21 Fix available: RHSA-2026:86618 · Red Hat
  6. 2026-10-21 Fix available: Red Hat Ceph Storage 9.2 · Red Hat

References

Other 1

  • TI-2024-32120 RGW DoS attack with empty HTTP header in S3 object copy CVSS 3.1HIGH 7.5
  • TI-2026-36920 Improper authorization in ceph CVSS 3.1CRITICAL 9.1
  • TI-2020-01660 Hard-coded credentials in ceph-ansible CVSS 3.1HIGH 8.8
  • TI-2018-07675 Improper authorization in Red Hat ceph CVSS 3.0HIGH 8.1
  • TI-2026-28807 Ceph: CephX AES Authentication error CVSS 3.1HIGH 8.8
  • TI-2019-07542 Improper handling of exceptional conditions in ceph CVSS 3.1HIGH 7.5
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences