CVE-2026-108522 Studio-Saelix Sencho Login Endpoint login improper authentication
Attackers can bypass login rate limiting by spoofing X-Forwarded-For headers, enabling brute-force attacks against user accounts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-108522?
CVE-2026-108522 is a medium-severity authentication bypass vulnerability in Studio-Saelix Sencho, published on 11 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was found in Studio-Saelix Sencho up to 0.94.1. This affects an unknown part of the file /api/auth/login of the component Login Endpoint. Performing a manipulation of the argument X-Forwarded-For results in improper authentication. The attack is possible to be carried out remotely. The exploit has been made public and could be used. The patch is named 79b86ddcd4aefdd6941f098e35990ab397b13c72. To fix this issue, it is recommended to deploy a patch. The vendor confirms: "The login limiter relied on client-supplied X-Forwarded-For data without an explicit trusted-proxy boundary, allowing an attacker to rotate the apparent client address. The remediation now ignores forwarding headers by default, accepts them only from explicitly configured proxy CIDRs, and adds a separate failed-attempt limit keyed by normalized account identity."
Weakness: CWE-287
Which versions are affected by CVE-2026-108522?
How do I fix CVE-2026-108522?
No fix has been published for CVE-2026-108522 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-2026-108522 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108522 exists.
Sources
Also known as GHSA-5mq8-98f7-6q76.