CVE-2025-62162 cel-rust May Panic During Parsing of Invalid CEL Expressions
Attackers can cause a denial of service by sending malformed CEL expressions to applications using the cel-rust library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-62162?
CVE-2025-62162 is a high-severity denial of service vulnerability in cel-rust, published on 10 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
cel-rust is a Common Expression Language interpreter written in Rust. Starting in version 0.10.0 and prior to version 0.11.4, parsing certain malformed CEL expressions can cause the parser to panic, terminating the process. When the crate is used to evaluate untrusted expressions (e.g., user-supplied input over an API), an attacker can send crafted input to trigger a denial of service (DoS). Version 0.11.4 fixes the issue.
Weakness: CWE-20
Which versions are affected by CVE-2025-62162?
2 open source packages ship an affected version, including cel.
| Package | Affected | Fixed in |
|---|---|---|
cel crates.io | From 0.10.0 | 0.11.4 |
cel crates.io | From 0.10.0 | 0.11.4 |
How do I fix CVE-2025-62162?
Upgrade cel to 0.11.4 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-62162 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-62162 exists.
Sources
Also known as GHSA-wxwx-9fh7-5mrw.