Public proof of conceptFix available

CVE-2024-38473

Q: Is CVE-2024-38473 actively exploited?

Active exploitation of CVE-2024-38473 has not been confirmed. Its EPSS score was 25.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2024-38473?

CVE-2024-38473 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

A public proof of concept exists; no exploitation attested.

Published2024-07-01
Fixed in2.4.60
WeaknessCWE-116

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

Encoding problem in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows request URLs with incorrect encoding to be sent to backend services, potentially bypassing authentication via crafted requests. 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 21:37 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-2024-38473?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-38473?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV · CISA-ADP

Apache HTTP Server

Branch	Affected	Fixed in	Source
2.4	≥ 2.4.0, < 2.4.60	2.4.60	NVD · OSV

Apache software foundation apache http server

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

Netapp ontap

Branch	Affected	Fixed in	Source
9.x	= 9	no fix published	NVD

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

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

httpdAlmaLinux:9all versions · fixed in 2.4.57-11.el9_4and 8 other packages
httpdAlmaLinux:8all versions · fixed in 2.4.37-65.module_el8.10.0+3872+9b8ab21e.1and 6 other packages
mod_http2AlmaLinux:8all versions · fixed in 1.15.7-10.module_el8.10.0+3832+564e7653
mod_mdAlmaLinux:8all versions · fixed in 1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa
mod_mdAlmaLinux:8all versions · fixed in 1:2.0.8-8.module_el8.6.0+3031+fb177b09
mod_sslAlmaLinux:9all versions · fixed in 1:2.4.57-11.el9_4and 1 other package
mod_sslAlmaLinux:8all versions · fixed in 1:2.4.37-65.module_el8.10.0+3872+9b8ab21e.1and 1 other package

Full record on NVD

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: 2 repositories, unverifiedAbdurahmon3236/CVE-2024-38473juanschallibaum/CVE-2024-38473-Nuclei-Template

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionnone2024-07-24
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.18.12024-07-24
CNAweakness (CWE)CWE-116read 2026-10-23
FIRST EPSSEPSS score25.9 %read 2026-10-23
PoC-in-GitHubproof of concept2read 2026-10-23
OSVaffected packages—

Technical details

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

Frequently asked questions

What is CVE-2024-38473?

Is CVE-2024-38473 actively exploited?

Active exploitation of CVE-2024-38473 has not been confirmed. Its EPSS score was 25.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-38473?

CVE-2024-38473 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

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