CVE-2025-62162: cel-rust May Panic During Parsing of Invalid CEL Expressions

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-10-10 · updated 2026-10-19
Weakness: CWE-20

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.

Affected products

cel-rust: from 0.10.0, < 0.11.4

References

https://github.com/cel-rust/cel-rust/releases/tag/cel-v0.11.4
https://github.com/cel-rust/cel-rust/security/advisories/GHSA-wxwx-9fh7-5mrw
https://github.com/cel-rust/cel-rust/security/advisories/GHSA-wxwx-9fh7-5mrw

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