CVE-2024-47866Public exploitNetwork attack vectorHinoki check available

Unauthenticated gateway crash via empty copy-source header

Published Nov 12, 2025 · Updated Nov 12, 2025

Improper input validation in Ceph RGW 19.2.3 and earlier allows remote attackers to crash the gateway via an empty S3 copy-source header. RGWCopyObj::parse_copy_location accepts an empty HTTP_X_AMZ_COPY_SOURCE value and indexes name_str[0] without checking that the string has content. No authentication or user interaction is required; a crafted object-copy request terminates the RGW daemon and interrupts S3 service.

CVSS severity7.5
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper input validation in Ceph RGW 19.2.3 and earlier allows remote attackers to crash the gateway via an empty S3 copy-source header. RGWCopyObj::parse_copy_location accepts an empty HTTP_X_AMZ_COPY_SOURCE value and indexes name_str[0] without checking that the string has content. No authentication or user interaction is required; a crafted object-copy request terminates the RGW daemon and interrupts S3 service.

The record

CVE
CVE-2024-47866
Published
Nov 12, 2025
Updated
Nov 12, 2025
Vendor
Ceph
Product
Ceph
Classifications
CWE-20, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 12, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 19.2.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ceph · Cephversion=<= 19.2.3

Published CVSS scores

7.5GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

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Technologies

Your stack

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Your stack

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