Improper control of interaction frequency in Django CRM - #VU153871
Published: October 7, 2026
Vulnerability identifier: #VU153871
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-799
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service for other calendar feed visitors.
The vulnerability exists due to improper accounting of requests rejected by per-client rate limits in calendar feed endpoints when enforcing shared per-feed limits. A remote attacker can repeatedly submit requests exceeding the per-client limit to exhaust the shared allowance and cause a denial of service for other calendar feed visitors.
Affected software
Django CRM
Remediation
Install security update from vendor's website.
Django CRM - update to 1.14.5