CVE-2026-113658 ApostropheCMS - Denial of Service

ApostropheCMS < 4.33.0 contains a denial of service caused by unauthenticated Rich Text CSV conversion route writing and not removing rejected multipart uploads in the system temporary directory, letting attackers consume disk space persistently, exploit requires no authentication.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
20 October 2026
Updated
21 October 2026
Weakness
CWE-400

Vendor fix

Update to version 4.33.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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