Public proof of conceptFix available

CVE-2024-38476

Q: Is CVE-2024-38476 actively exploited?

Active exploitation of CVE-2024-38476 has not been confirmed. Its EPSS score was 41.6% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2024-38476?

CVE-2024-38476 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

A public proof of concept exists; no exploitation attested.

Published2024-07-01
Fixed in2.4.60
WeaknessCWE-829

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Vulnerability in core of Apache HTTP Server 2.4.59 and earlier are vulnerably to information disclosure, SSRF or local script execution via backend applications whose response headers are malicious or exploitable. Users are recommended to upgrade to version 2.4.60, which fixes this issue.

Timeline

dates in UTC

2024-07-0119:15CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-38476?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-38476?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · CISA-ADP

Apache HTTP Server

Branch	Affected	Fixed in	Source
2.4	≥ 2.4.0, < 2.4.60	2.4.60	NVD
2.4	≤ 2.4.59	no fix published	CISA-ADP

Netapp clustered data ontap

Branch	Affected	Fixed in	Source
9.0	= 9.0	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Apache HTTP Server to 2.4.60

Advisories and patches

httpd.apache.orgVendor Advisory

Detection

read 2026-10-23 19:24 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedabanop22333/Apache-Authentication-Flaw-Research-CVE-2024-38476-

Sources

CISA-ADPSSVC decisionnone2024-10-29
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.19.82024-07-02
NVDCVSS 3.19.8read 2026-10-23
CNAweakness (CWE)CWE-829read 2026-10-23
FIRST EPSSEPSS score41.6 %read 2026-10-23
PoC-in-GitHubproof of concept1read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2024-07-01
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2024-38476?

Is CVE-2024-38476 actively exploited?

Active exploitation of CVE-2024-38476 has not been confirmed. Its EPSS score was 41.6% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-38476?

CVE-2024-38476 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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