CVE-2026-77651 Supply chain in arrayref

Critical 9.8 Published Updated

A rogue dependency in the arrayref crate allows arbitrary code execution during project compilation via a command-and-control server.

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-2026-77651?

CVE-2026-77651 is a critical vulnerability in droundy arrayref, published on 21 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The arrayref crate 0.3.10 for Rust can trigger execution of malicious code when compiling a project that uses the crate, because it has a rogue dependency that registers with a command-and-control server to offer arbitrary code execution.

Weakness: CWE-506

Which versions are affected by CVE-2026-77651?

How do I fix CVE-2026-77651?

No fix has been published for CVE-2026-77651 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-77651 being exploited?

There is no known exploitation of CVE-2026-77651 in the wild and no public exploit code.

Sources

Also known as GHSA-jvc2-9prg-ffvc, UBUNTU-CVE-2026-77651.

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