CVE-2026-42163 Auth bypass in n/a

Critical 9.8 Published Updated

Attackers can bypass authentication via LTI to access internal accounts in Mahara, requiring specific LTI configurations.

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-2026-42163?

CVE-2026-42163 is a critical authentication bypass vulnerability in n/a, published on 17 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Mahara before 25.04.5 and 26.04.0 is vulnerable to unauthorized access to internal accounts via Learning Tools Interoperability (LTI) under certain circumstances. This applies to LTI 1.1 and LTI 1.3 Advantage.

Weakness: CWE-284

Which versions are affected by CVE-2026-42163?

How do I fix CVE-2026-42163?

No fix has been published for CVE-2026-42163 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-2026-42163 being exploited?

There is no known exploitation of CVE-2026-42163 in the wild and no public exploit code.

Sources

Also known as GHSA-f7jm-86g7-97p8.

Is CVE-2026-42163 in your software?

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