What is CVE-2024-38474?

CVE-2024-38474 is a critical-severity vulnerability in Apache Http Server, classified under Improper Encoding or Escaping of Output. CVSS score: 9.8/10. Published 2024-07-01.

How severe is CVE-2024-38474?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2024-38474 known to be exploited?

11 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Apache Http Server

CVE-2024-38474

Substitution encoding issue in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows attacker to execute scripts in directories permitted by the configuration but not directly reachable by any URL or source disclosure of scripts meant to only to be executed as CGI. Users are recommended to upgrade to version 2.4.60, which fixes this issue. Some RewriteRules that capture and substitute unsafely will now fail unless rewrite flag "UnsafeAllow3F" is specified.

EPSS: 0.025 (82.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Apache Http_server
Apache Software Foundation Http Server — versions 2.4.0
Netapp Clustered_data_ontap — versions 9.0

Weakness classification (CWE)

CWE-116 — Improper Encoding or Escaping of Output

Public proof-of-concept exploits

References

security@apache.org (vendor-advisory, Vendor Advisory)
security@apache.org (Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2024-38474?: CVE-2024-38474 is a critical-severity vulnerability in Apache Http Server, classified under Improper Encoding or Escaping of Output. CVSS score: 9.8/10. Published 2024-07-01.
How severe is CVE-2024-38474?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2024-38474 known to be exploited?: 11 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.