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TI-2025-32650 Aliases CVE-2025-52555

CephFS Permission Escalation Vulnerability in Ceph Fuse mounted FS

Priority LOW 28CWE-269Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · Low · None
Fix status
Partial Red Hat: 3 fixed, 7 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-269.

Summary

Ceph is a distributed object, block, and file storage platform. In versions 17.2.7, 18.2.1 through 18.2.4, and 19.0.0 through 19.2.2, an unprivileged user can escalate to root privileges in a ceph-fuse mounted CephFS by chmod 777 a directory owned by root to gain access. The result of this is that a user could read, write and execute to any directory owned by root as long as they chmod 777 it. This impacts confidentiality, integrity, and availability. It is patched in versions 17.2.8, 18.2.5, and 19.2.3.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00209 11th percentileScored 2026-11-07
Fix Partial ceph (ceph): 18.2.5, 19.2.3Red Hat: 3 advisoriesRed Hat: 3 fixed, 7 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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
cephceph= 17.2.7; 18.2.1 to before 18.2.5; 19.0.0 to before 19.2.318.2.5, 19.2.3Patch availableCNA
  • ceph Vendorceph Affected = 17.2.7; 18.2.1 to before 18.2.5; 19.0.0 to before 19.2.3 Fixed in 18.2.5, 19.2.3 Patch available CNA

Remediation

  • Fix · CNA ceph (ceph) Fixed in 18.2.5, 19.2.3

Red Hat 3 advisories

  • RHSA-2026:33154 Released 2026-06-29 · Red Hat rating Important
    Red Hat Ceph Storage
    • Red Hat Ceph Storage 7.1 registry.redhat.io/rhceph/grafana-rhel9, registry.redhat.io/rhceph/rhceph-7-rhel9
  • RHSA-2026:2769 Released 2026-02-17 · Red Hat rating Important
    Red Hat Ceph Storage 7.1 security and bug fix updates
    • Red Hat Ceph Storage 7.1 Tools ceph-2:18.2.1-381.el8cp, ceph-2:18.2.1-381.el9cp, ceph-base-2:18.2.1-381.el8cp +47
  • RHSA-2026:1536 Released 2026-01-29 · Red Hat rating Moderate
    Red Hat Ceph Storage 9.0 Security and Enhancement update
    • Red Hat Ceph Storage 9.0 Tools ceph-2:20.1.0-144.el10cp, ceph-2:20.1.0-144.el9cp, ceph-base-2:20.1.0-144.el10cp +47

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Ceph Storage 4AffectedNo fix yet
Red Hat Ceph Storage 5AffectedNo fix planned: Out of support scope
Red Hat Ceph Storage 6AffectedNo fix planned: Will not fix
Red Hat Ceph Storage 8AffectedNo fix yet
Red Hat Enterprise Linux 10AffectedNo fix yet
Red Hat Enterprise Linux 8AffectedNo fix yet
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat Ceph Storage 7.1Fixed RHSA-2026:33154
Red Hat Ceph Storage 7.1 ToolsFixed RHSA-2026:2769
Red Hat Ceph Storage 9.0 ToolsFixed RHSA-2026:1536
Not affected: 2 products
  • Red Hat Ceph Storage 7.1
  • Red Hat Ceph Storage 9.0 Tools

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-52555

References

Other 2

  • TI-2024-32613 Ceph is vulnerable to authentication bypass through RadosGW CVSS 3.1HIGH 8.1
  • 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
See all 17 →

Sources

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