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Full vulnerability report · 2025
CVE-2024-47866High confidence

RGW DoS attack with empty HTTP header in S3 object copy

ceph · ceph

Official source article: GitHub GHSA-MGRM-G92Q-F8H8 ↗. Check the applicable product and release in the original source.

7.5HighCVSS 3.1
Recommended action
Within 7 days

High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:Critical, raised one band.upgradedsince 11 Dec 2025

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • A structured source references public exploit or proof-of-concept material.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.45% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs ceph ceph and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 3 daysRemediation target: Within 90 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Distribution package intelligence

Release-specific package status

Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

5 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourcecephVendor fix publishedDebian records a fixed source-package version for this release.18.2.7+ds-1+deb13u1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian bookwormbookworm · sourcecephVendor fix publishedDebian records a fixed source-package version for this release.16.2.15+ds-0+deb12u2Debian Security Tracker ↗Source updated 5 Oct 2026
Debian forkyforky · sourcecephVendor fix publishedDebian records a fixed source-package version for this release.18.2.7+ds-1.1Debian Security Tracker ↗Source updated 5 Oct 2026
Debian sidsid · sourcecephVendor fix publishedDebian records a fixed source-package version for this release.18.2.7+ds-1.1Debian Security Tracker ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivecephVendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.19.2.3-0ubuntu0.24.04.3Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2024-47866 · CSAF 2.0 · revision 3 · finalRed Hat Product Securityrgw: RGW DoS attack with empty HTTP header in S3 object copy
110 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • ceph-base as a component of Red Hat Ceph Storage 4
  • ceph-common as a component of Red Hat Ceph Storage 4
  • ceph-fuse as a component of Red Hat Ceph Storage 4
  • ceph-grafana-dashboards as a component of Red Hat Ceph Storage 4
  • ceph-mds as a component of Red Hat Ceph Storage 4
  • ceph-mgr as a component of Red Hat Ceph Storage 4
  • ceph-mgr-dashboard as a component of Red Hat Ceph Storage 4
  • ceph-mgr-diskprediction-local as a component of Red Hat Ceph Storage 4
  • ceph-mgr-k8sevents as a component of Red Hat Ceph Storage 4
  • ceph-mgr-rook as a component of Red Hat Ceph Storage 4
  • ceph-mon as a component of Red Hat Ceph Storage 4
  • ceph-osd as a component of Red Hat Ceph Storage 4
Summary
A flaw was found in Ceph RGW. Using the x-amz-copy-source header to upload an empty object will cause Ceph RGW to crash, leading to availability issues.
Remediation
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 For supported configurations, refer to: https://access.redhat.com/articles/1548993
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2024-55069

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

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.

What

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.

Why

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

What

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.

Why

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
a network path → Improper Input Validation → disrupt the affected service
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-20 ↗

CWE-20: Improper Input Validation. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedDenial of serviceCWE-20Public exploit reference
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2025-2584Red Hat Enterprise Linux Ceph Storage: Mehrere Schwachstellen

Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux Ceph Storage ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen und um einen Denial-of-Service-Zustand zu verursachen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20251119Security Bulletin 19 Nov 2025

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 19 Nov 2025, published on 19 November 2025. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0326Multiples vulnérabilités dans les produits VMware

d?id=CVE-2024-47689 Référence CVE CVE-2024-47703 https://www.cve.org/CVERecord?id=CVE-2024-47703 Référence CVE CVE-2024-47704 https://www.cve.org/CVERecord?id=CVE-2024-47704 Référence CVE CVE-2024-47728 https://www.cve.org/CVERecord?id=CVE-2024-47728 Référence CVE CVE-2024-47736 https://www.cve.org/CVERecord?id=CVE-2024-47736 Référence CVE CVE-2024-47738 https://www.cve.org/CVERecord?id=CVE-2024-47738 Référence CVE CVE-2024-47745 https://www.cve.org/CVERecord?id=CVE-2024-47745 Référence CVE CVE-2024-47794 https://www.cve.org/CVERecord?id=CVE-2024-47794 Référence CVE CVE-2024-47809 https://www.cve.org/CVERecord?id=CVE-2024-47809 Référence CVE CVE-2024-47866 https://www.cve.org/CVERecord?id=CVE-2024-47866 Référence CVE CVE-2024-48873 https://www.cve.org/CVERecord?id=CVE-2024-48873 Référence CVE CVE-2024-48875 https://www.cve.org/CVERecord?id=CVE-2024-48875 Référence CVE CVE-2024-49504 https://www.cve.org/CVERecord?id=CVE-2024-49504 Référence CVE CVE-2024-49568 https://www.cve.org/CVERecord?id=CVE-2024-49568 Référence CVE CVE-2024-49569 https://www.cve.org/CVERecord?id=CVE-2024-49569 Référence CVE CVE-2024-49855 https://www.cve.org/CVERecord?id=CVE-2024-49855 Référence CVE CVE-2024-49859 https://www.cve.org/CVERecord?id=CVE-2024-49859 Référence CVE CVE-2024-49861 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0316Multiples vulnérabilités dans les produits VMware

d?id=CVE-2024-47689 Référence CVE CVE-2024-47703 https://www.cve.org/CVERecord?id=CVE-2024-47703 Référence CVE CVE-2024-47704 https://www.cve.org/CVERecord?id=CVE-2024-47704 Référence CVE CVE-2024-47728 https://www.cve.org/CVERecord?id=CVE-2024-47728 Référence CVE CVE-2024-47736 https://www.cve.org/CVERecord?id=CVE-2024-47736 Référence CVE CVE-2024-47738 https://www.cve.org/CVERecord?id=CVE-2024-47738 Référence CVE CVE-2024-47745 https://www.cve.org/CVERecord?id=CVE-2024-47745 Référence CVE CVE-2024-47794 https://www.cve.org/CVERecord?id=CVE-2024-47794 Référence CVE CVE-2024-47809 https://www.cve.org/CVERecord?id=CVE-2024-47809 Référence CVE CVE-2024-47866 https://www.cve.org/CVERecord?id=CVE-2024-47866 Référence CVE CVE-2024-48873 https://www.cve.org/CVERecord?id=CVE-2024-48873 Référence CVE CVE-2024-48875 https://www.cve.org/CVERecord?id=CVE-2024-48875 Référence CVE CVE-2024-49504 https://www.cve.org/CVERecord?id=CVE-2024-49504 Référence CVE CVE-2024-49568 https://www.cve.org/CVERecord?id=CVE-2024-49568 Référence CVE CVE-2024-49569 https://www.cve.org/CVERecord?id=CVE-2024-49569 Référence CVE CVE-2024-49855 https://www.cve.org/CVERecord?id=CVE-2024-49855 Référence CVE CVE-2024-49859 https://www.cve.org/CVERecord?id=CVE-2024-49859 Référence CVE CVE-2024-49861 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2025-023955レッドハットのRed Hat Cephにおける入力確認に関する脆弱性

Cephは分散型のオブジェクト、ブロック、およびファイルストレージプラットフォームです。バージョン19.2.3以前では、オブジェクトの配置時に引数「x-amz-copy-source」を使用し、その内容に空文字列を指定すると、RGWデーモンがクラッシュしてDoS攻撃につながる問題が存在します。公開時点では、既知の修正版は提供されていません。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6641MS 12월 보안 위협에 따른 정기 보안 업데이트 권고

lientHello | | Mariner | CVE-2025-11935 | Forward Secrecy Violation in WolfSSL TLS 1.3 | | Mariner | CVE-2025-11934 | Improper Validation of Signature Algorithm Used in TLS 1.3 CertificateVerify | | Mariner | CVE-2025-11933 | DoS Vulnerability in wolfSSL TLS 1.3 CKS Extension | | Mariner | CVE-2025-11932 | Timing Side-Channel in PSK Binder Verification | | Mariner | CVE-2025-11931 | Integer Underflow Leads to Out-of-Bounds Access in XChaCha20-Poly1305 Decrypt | | Mariner | CVE-2025-11230 | Denial of service vulnerability in HAProxy mjson library | | Mariner | CVE-2025-10158 | Rsync: Out of bounds array access via negative index | | Mariner | CVE-2024-47866 | RGW DoS attack with empty HTTP header in S3 object copy | | Windows Cryptographic Services | CVE-2024-30098 | Windows Cryptographic Services 보안 기능 바이패스 취약성 | | Mariner | CVE-2024-25621 | containerd affected by a local privilege escalation via wide permissions on CRI directory | | Mariner | CVE-2023-53749 | x86: fix clear_user_rep_good() exception handling annotation | 작성 : 위협분석단 취약점분석팀

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Fixed
Action
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 For supported configurations, refer to: https://access.redhat.com/articles/1548993
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 12 Nov 2025 · Last source change 11 Dec 2025, 15:35 UTC · CWE-20 · Improper Input Validation

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2024-55069
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    <= 19.2.3 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    <= 19.2.3 · Fixed: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 For supported configurations, refer to: https://access.redhat.com/articles/1548993
    Red Hat Product Security ↗
  2. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    Red Hat Product Security ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2024-55069↗Red Hat Product Security security advisory↗CISA Vulnrichment SSVC evidence↗Public exploit reference · GitHub GHSA-MGRM-G92Q-F8H8↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2024-47866 · cve.blacktree.nl