CVE-2026-111388 Frappe before 16.33.0 restrict_ip Allowlist Bypass via API Key, OAuth Authentication
Attackers with valid API or OAuth credentials can bypass IP allowlist restrictions in Frappe Framework, accessing the system from unauthorized networks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-111388?
CVE-2026-111388 is a medium-severity authentication bypass vulnerability in frappe, published on 16 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Frappe Framework before 15.120.0 and 16.x before 16.33.0 does not enforce the per-user restrict_ip allowlist for non-session authentication methods, including API key, OAuth, and header-based authentication. Attackers holding valid credentials of these types can authenticate from IP addresses outside the allowlist, defeating the configured network-based access restrictions.
Weakness: CWE-284
Which versions are affected by CVE-2026-111388?
How do I fix CVE-2026-111388?
No fix has been published for CVE-2026-111388 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-111388 being exploited?
There is no known exploitation of CVE-2026-111388 in the wild and no public exploit code.
Sources
Also known as GHSA-87cm-fpc4-v76f, GHSA-h9jq-7pgf-hw8q.