CVE-2024-47866 | RGW DoS attack with empty HTTP header in S3 object copy

Exp

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.

Published: 2025-11-12 Last update: 2025-12-31 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-47866 is rated Exploit Available (58.2/100): CVSS High severity, with low exploitation likelihood (EPSS 0.17%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2024-47866

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2024-47866

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-07 0.13% 0.17% +0.04%
2 2026-06-04 0.19% 0.13% -0.06%
3 2026-01-01 — 0.19% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-47866

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2024-47866

OS Trackers for CVE-2024-47866

vendor priority summary link
alpine — CVE-2024-47866: 1 source package rows (ceph); 9 state rows across 1 repos (edge-community); fixed 0, open 9. https://security.alpinelinux.org/vuln/CVE-2024-47866
debian not yet assigned CVE-2024-47866 not yet assigned priority: Debian including 1 source packages (ceph), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2024-47866
redhat high — https://access.redhat.com/security/cve/CVE-2024-47866
suse high — https://www.suse.com/security/cve/CVE-2024-47866/
ubuntu medium CVE-2024-47866 medium priority: Ubuntu including 1 source packages (ceph), 9 status rows across 9 suites (bionic, focal, jammy, noble, plucky, questing, trusty, upstream, xenial): released 7, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2024-47866

Affected software / configurations for CVE-2024-47866

Vendor Product Version Raw CPE
redhat ceph <= 19.2.3 cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:*

References for CVE-2024-47866

cvelogic Threat Intelligence