Vulnerability in Apache HTTP Server Project Lounge Windows

CVE-2026-89282

The Apache Lounge Windows distribution of Apache HTTP Server build contains an insecure installation directory permissions vulnerability through its default install directory on C:\, which inherits write access for Authenticated Users.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.005 (41.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-89282: held from 0.003 to 0.005.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2026-89282?
CVE-2026-89282 is a critical-severity vulnerability in Apache HTTP Server Project Lounge Windows, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 9.1/10. Published 2026-09-22.
How severe is CVE-2026-89282?
Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2026-89282 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.