CVE-2026-2302 Unsafe Reflection in Mongoid::Criteria.from_hash
Attackers can execute arbitrary Ruby code via malicious Hash values in Mongoid::Criteria.from_hash, affecting MongoDB Ruby Driver users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-2302?
CVE-2026-2302 is a medium-severity code injection vulnerability in MongoDB Ruby Driver, published on 10 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Under specific conditions when processing a maliciously crafted value of type Hash r, Mongoid::Criteria.from_hash may allow for executing arbitrary Ruby code.
Weakness: CWE-183
Which versions are affected by CVE-2026-2302?
How do I fix CVE-2026-2302?
No fix has been published for CVE-2026-2302 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-2302 being exploited?
There is no known exploitation of CVE-2026-2302 in the wild and no public exploit code.
Sources
Also known as GHSA-68xj-h57p-gg5j, UBUNTU-CVE-2026-2302.