Vulnerability in Apache HTTP Server
CVE-2024-38473
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.259 (97.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.259 · newest: 0.259 · change: 0.000
Affected products
- Apache HTTP Server
- Apache Software Foundation HTTP Server — versions 2.4.0
- NetApp Ontap — versions 9
Weakness classification (CWE)
Public proof-of-concept exploits
References
- httpd.apache.org/security/vulnerabilities_24.html (vendor-advisory, Vendor Advisory)
- security.netapp.com/advisory/ntap-20240712-0001/ (Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List)
Frequently asked questions
- What is CVE-2024-38473?
- CVE-2024-38473 is a high-severity vulnerability in Apache HTTP Server, classified under Improper Encoding or Escaping of Output. CVSS score: 8.1/10. Published 2024-07-01.
- How severe is CVE-2024-38473?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2024-38473 known to be exploited?
- 13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.