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

Analyzed

AliasesMGASA-2025-0333UBUNTU-CVE-2024-47866DEBIAN-CVE-2024-47866+1 more

Published 12-11-2025Last modified 11-12-2025

Vulnerability summary

CVE-2024-47866 is a high (CVSS 7.5) Improper Input Validation vulnerability in ceph. EPSS estimates a 0.48% chance of exploitation in the next 30 days, higher than 41.3% of scored vulnerabilities. 1 public exploit is recorded.

Priority

Prioritisepublic exploit

Public exploit (GitHub, Date unknown)

Source freshness unavailable

How is this decided?

CVSS score

7.5/10

010

High · v3.1 (CVE.org)

EPSS score

0.48%

0%100%

Low · +0.03 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits1github

Advisory lineage

Upstream 0 · Downstream 3 · Related 1

DLA-4460-1 RHSA-2025:21068 RHSA-2026:2769 USN-8045-1

Timeline

12-11-2025
PublishedVulnerability first disclosed.
11-12-2025
Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

5 scores · 5 sources · 1 version

v3.17.5

EPSS trend

Probability

0.48%

Chance of exploitation in the next 30 days

Percentile

41%

Versus all other CVEs

30-day change

Increase +0.03 pp

From 0.45% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found

githubUnverified
Ceph
Maturity: poc

Weaknesses

CWE · root cause

CWE-20Improper Input ValidationThe 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.

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Alpine1 product

ceph19< 19.2.4-r0

Ceph1 product

ceph≤ 19.2.3

Debian1 product

ceph< 16.2.15+ds-0+deb12u2 | < 18.2.7+ds-1+deb13u1 | < 18.2.7+ds-1.1

Mageia1 product

ceph< 18.2.7-2.1.mga9

Redhat1 product

ceph≤ 19.2.3

Ubuntu1 product

ceph< 0.80.11-0ubuntu1.14.04.4+esm4 | < 10.2.11-0ubuntu0.16.04.3+esm3 | < 12.2.13-0ubuntu0.18.04.11+esm2 | < 15.2.17-0ubuntu0.20.04.6+esm1 | < 17.2.9-0ubuntu0.22.04.2 | < 19.2.3-0ubuntu0.24.04.3 | < 19.2.3-0ubuntu1.25.10.3

6 vendors · 6 products