Ceph is a distributed object, block, and file storage platform. In versions up to and including 19.2.3, using the argument x-amz-copy-source to put an object and specifying an empty string as its content leads to the RGW daemon crashing, resulting in a DoS attack. As of time of publication, no known patched versions exist.
CVE-2024-47866
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 64% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 50(Track)EG Risk 50/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 38%
- KEV
- Not listed
Published
November 12, 2025
Last Modified
December 31, 2025
References (3)
- security-advisories@githubhttps://github.com/ceph/ceph/security/advisories/GHSA-mgrm-g92q-f8h8
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/11/11/3
- 134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/ceph/ceph/security/advisories/GHSA-mgrm-g92q-f8h8
Vendor Advisories for CVE-2024-47866(4)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- CVE-2024-47866Microsoft Security Response Center (MSRC)High
RGW DoS attack with empty HTTP header in S3 object copy
- RHSA-2026:2769Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Ceph Storage 7.1 security and bug fix updates
- RHSA-2025:21203Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Ceph Storage
- RHSA-2025:21068Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Ceph Storage 8.1 bug fix update
Patch Availability(4)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | rbd-nbd (12.2.13-0ubuntu0.18.04.11+esm2) @ bionic | 2026-05-29 | ubuntu |
| redhat | ceph-2:18.2.1-381.el8cp | 2026-02-17 | redhat |
| redhat | rhceph/rhceph-8-rhel9:8 | 2025-11-12 | redhat |
| redhat | ceph-2:19.2.1-292.el9cp | 2025-11-12 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(4 across 4 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| ceph | 14.2.21-1, 14.2.21-1+deb11u1 | 14.2.21-1+deb11u2 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| ceph | 16.2.11+ds-2 ... 16.2.15+ds-0+deb12u1 (6 versions) | 16.2.15+ds-0+deb12u2 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| ceph | 18.2.7+ds-1 | 18.2.7+ds-1+deb13u1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| ceph | 18.2.7+ds-1 | 18.2.7+ds-1.1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(1)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 9× in last 7d / 33× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 156 total refreshes for this CVE.
- 2026-09-18 19:26 UTCEPSS rescore
- 2026-09-17 19:27 UTCEPSS rescore
- 2026-09-16 14:06 UTCEPSS rescore
- 2026-09-16 05:12 UTCEPSS rescore
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- 2026-09-13 16:45 UTCEPSS rescore
- 2026-09-12 18:36 UTCOSV refresh
- 2026-09-12 14:59 UTCEPSS rescore
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- 2026-08-27 14:23 UTCEPSS rescore
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- 2026-08-25 13:47 UTCEPSS rescore
- 2026-08-24 23:44 UTCOSV refresh
- 2026-08-24 14:15 UTCEPSS rescore
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- 2026-08-08 17:19 UTCOSV refresh
- 2026-08-08 16:35 UTCEPSS rescore
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- 2026-08-06 13:45 UTCEPSS rescore
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- 2026-07-25 14:17 UTCEPSS rescore
- 2026-07-25 14:16 UTCEPSS rescore
- 2026-07-24 14:16 UTCEPSS rescore
- 2026-07-23 15:41 UTCOSV refresh
- 2026-07-23 14:17 UTCEPSS rescore
- 2026-07-23 14:17 UTCEPSS rescore
- 2026-07-23 02:41 UTCEG score recompute
- 2026-07-22 14:07 UTCEPSS rescore
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- 2026-07-20 17:06 UTCEPSS rescore
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- 2026-07-18 10:03 UTCEPSS rescore
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- 2026-07-16 17:02 UTCEPSS rescore
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- 2026-07-06 10:11 UTCOSV refresh
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- 2026-06-30 23:21 UTCEPSS rescore
Frequently asked(5)
What is CVE-2024-47866?
When was CVE-2024-47866 disclosed?
Is CVE-2024-47866 actively exploited?
What is the CVSS score of CVE-2024-47866?
How do I remediate CVE-2024-47866?
Dependency Blast Radius
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