CVE-2026-105140 Obot 0.25.0 before 0.25.6 and 0.26.0 before 0.26.1 Race Condition Restores Revoked Group Membership

Low 2.3 Published Updated

A race condition in Obot allows attackers to retain revoked group-based access for ten minutes by exploiting out-of-order auth provider refreshes.

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-2026-105140?

CVE-2026-105140 is a low-severity vulnerability in obot-platform obot, published on 7 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Obot 0.25.0 before 0.25.6 and 0.26.0 before 0.26.1 contains a race condition in auth provider group refreshes that can restore group memberships just revoked in the identity provider. When overlapping refreshes for the same user commit out of order, stale memberships are persisted and the user retains revoked group-based access for about ten minutes.

Weakness: CWE-362

Which versions are affected by CVE-2026-105140?

How do I fix CVE-2026-105140?

No fix has been published for CVE-2026-105140 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-105140 being exploited?

There is no known exploitation of CVE-2026-105140 in the wild and no public exploit code.

Sources

Also known as GHSA-929v-v9hq-5xhr.

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