CVE-2026-59685

Apache HTTP Server: Out-of-Bounds Write in ap_directory_walk() Canonical-Name Rewrite on CASE_BLIND_FILESYSTEM

HIGH
7.5
CVSS Score
Published: October 1, 2026 at 04:07 PM UTC
Updated: October 5, 2026 at 01:21 PM UTC
1 product affected across 1 vendorHTTP Server

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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

Out-of-bounds Write vulnerability in Apache HTTP Server on Windows while processing paths with 8.3 names that may grow when expanded. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.4.0 ≤ v ≤ 2.4.682.4.0 ≤ v < 2.4.692.4.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/10/01/21

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-787

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