CVE-2026-102811 Marmite - Broken Access Control

Marmite <= 0.4.2 contains missing authentication in development server endpoints and directory traversal in handle_create_content and handle_clone_content, letting unauthenticated attackers modify site content and write files outside the project directory.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.66% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
File System Write, Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
29 September 2026
Updated
15 October 2026
Weakness
CWE-306

Vendor fix

Update to the latest version where authentication is enforced and directory traversal is fixed.

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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