CVE-2026-31282 Missing authorization in n/a

Critical 9.8 Published Updated

Attackers may reveal the login form and brute force credentials due to missing rate limits, though the vendor disputes the vulnerability's validity.

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-2026-31282?

CVE-2026-31282 is a critical missing authorization vulnerability in n/a, published on 13 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Totara LMS v19.1.5 and before is vulnerable to Incorrect Access Control. The login page code can be manipulated to reveal the login form. An attacker can chain that with missing rate-limit on the login form to launch a brute force attack. NOTE: this is disputed by the Supplier because (1) local login is enabled/disabled server side (this is not a client side control); (2) there is no evidence SSO login can be bypassed to allow local login; and (3) there is no evidence that local login can be performed when disabled server side.

Weakness: CWE-284

Which versions are affected by CVE-2026-31282?

How do I fix CVE-2026-31282?

No fix has been published for CVE-2026-31282 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-31282 being exploited?

There is no known exploitation of CVE-2026-31282 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-2969-3f7h-gmhq.

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