CVE-2026-47161 RELATE Vulnerable to Remote Code Execution (RCE) via Insecure Celery Pickle Deserialization
An attacker with broker access or an authenticated student can achieve remote code execution on the host server via insecure Celery pickle deserialization.
- 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-2026-47161?
CVE-2026-47161 is a high-severity unsafe deserialization vulnerability in inducer relate, published on 27 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
RELATE is a web-based courseware package. Prior to commit d66ba5659b459bf1ba56b7109b5f9ecf197cbefb, RELATE LMS configures its Celery workers to accept and deserialize untrusted 'pickle' data. An attacker who can reach the message broker can execute arbitrary commands on the host server. Combined with missing network isolation in the code execution sandbox, this allows an authenticated student to achieve full Remote Code Execution (RCE) on the host system. Commit d66ba5659b459bf1ba56b7109b5f9ecf197cbefb fixes the issue.
Weakness: CWE-502
Which versions are affected by CVE-2026-47161?
How do I fix CVE-2026-47161?
No fix has been published for CVE-2026-47161 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-47161 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47161 exists.
Sources
Also known as GHSA-4mwh-mwv4-m252.