What is CVE-2024-38475?

CVE-2024-38475 is a vulnerability in Apache Software Foundation Http Server, classified under Improper Encoding or Escaping of Output. Published 2024-07-01.

Is CVE-2024-38475 known to be exploited?

Yes. CVE-2024-38475 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-05-01), indicating it is being actively exploited. 24 public proof-of-concept repositories are indexed.

Vulnerability in Apache Software Foundation Http Server

CVE-2024-38475

Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are permitted to be served by the server but are not intentionally/directly reachable by any UR…

EPSS: 0.939 (99.9th percentile) — read the EPSS interpretation.

Affected products

Apache Software Foundation Http Server — versions 2.4.0

Weakness classification (CWE)

CWE-116 — Improper Encoding or Escaping of Output

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2025-05-01. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2025-05-22.

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Public proof-of-concept exploits

References

httpd.apache.org/security/vulnerabilities_24.html (vendor-advisory)
security.netapp.com/advisory/ntap-20240712-0001/

Frequently asked questions

What is CVE-2024-38475?: CVE-2024-38475 is a vulnerability in Apache Software Foundation Http Server, classified under Improper Encoding or Escaping of Output. Published 2024-07-01.
Is CVE-2024-38475 known to be exploited?: Yes. CVE-2024-38475 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-05-01), indicating it is being actively exploited. 24 public proof-of-concept repositories are indexed.