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CVE-2024-40898

Exploitation: none CVSS 9.1 CRITICAL

CVSS base score: 9.1 (Critical) CISA · v3.1

Score assigned by CISA's Vulnrichment program; the vendor's CVE record did not include one.

Vendor: Apache Software Foundation   Product: Apache HTTP Server

Description

SSRF in Apache HTTP Server on Windows with mod_rewrite in server/vhost context, allows to potentially leak NTML hashes to a malicious server via SSRF and malicious requests. Users are recommended to upgrade to version 2.4.62 which fixes this issue. 

Lifecycle Timeline

Each milestone comes from a different source, so gaps between them are gaps in what those sources publish, not evidence that nothing happened. EPSS history for this CVE holds 126 points from 2024-07-20, tracked daily from 2026-09-09; earlier points are weekly, which dates a spike to within a week. Peak probability 1.6% on 2025-03-29.

Published Applicability

Red Hat CSAF/VEX 1 affected · 1 fixed · 53 not affected
OSV.dev (incl. GHSA) 3 affected · 3 fixed · 0 not affected
CVE List v5 (CNA container) 1 affected · 0 fixed · 0 not affected
CVE List v5 (ADP/Vulnrichment) 1 affected · 0 fixed · 0 not affected

Check whether a specific version is affected →

What each source publishes about which product versions carry this vulnerability, kept as written rather than merged. Absence here means no source has published applicability data, not that nothing is affected.

Research & News Coverage

No mentions found in monitored research blogs or news feeds.

Detection & Exploitation

Exploit / Pen Test
Network IDS/IPS
none published
Host / SIEM
none published

Coverage across public collections only: Nuclei and OpenVAS NVT (scan); Snort and Suricata ET Open (network); Sigma and YARA (host/SIEM); Metasploit, Exploit-DB and public GitHub repositories (exploit). Absence here means nothing public was found, not that detection is impossible.
GitHub PoC repositories are collected automatically by PoC-in-GitHub (CC0) and are not vetted: some are fakes and some are malware. Treat them as evidence that code was published, not as code to run.
OpenVAS coverage derives from the Greenbone Community Feed, made available under the Open Database License (ODbL) v1.0; its individual Vulnerability Tests are licensed GNU GPL v2.

Distribution Status

Debian · apache2 bookworm trixie forky sid scope: local

Where the distribution has shipped a fix, and in which version. Green means the release has resolved it, amber that it is still open. Data from the Debian Security Tracker, used under Debian's MIT / GPLv2+ terms. Debian is upstream of several other distributions, so a fix here often precedes theirs.

CISA Assessment (Vulnrichment / SSVC)

none
yes
total
9.1 CRITICAL
—
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE-918 — Server-Side Request Forgery (SSRF)
2024-07-18

D3FEND Countermeasures

Defensive techniques inferred by MITRE D3FEND from the underlying weakness (CWE-918) — general hardening and detection guidance for this weakness class, not a vendor patch for this specific CVE.

Listed By

SourceDateRecord
CISA Vulnrichment 2024-07-18 source record →

Referenced in Advisories

DateAdvisoryIssuer
2024-07-24 2024-073: Apache HTTP Server Critical Vulnerabilities CERT-EU

Weaponization Timeline — Offensive & Testing Tools

No exploit-tool sightings recorded for this CVE.

Evidence tiers are explained on the About page — a merged Metasploit module is far stronger evidence than a distro package mention.

External References