Cron-utils is a Java library to parse, validate, migrate crons as well as get human readable descriptions for them. In cron-utils before version 9.1.3, a template Injection vulnerability is present. This enables attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. Only projects using the @Cron annotation to validate untrusted Cron expressions are affected. This issue was patched in version 9.1.3.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26238
Reference (s):
- https://github.com/jmrozanec/cron-utils/security/advisories/GHSA-pfj3-56hm-jwq5
- URL: https://github.com/jmrozanec/cron-utils/security/advisories/GHSA-pfj3-56hm-jwq5
- https://github.com/jmrozanec/cron-utils/commit/4cf373f7352f5d95f0bf6512af8af326b31c835e
- URL: https://github.com/jmrozanec/cron-utils/commit/4cf373f7352f5d95f0bf6512af8af326b31c835e
- https://github.com/jmrozanec/cron-utils/issues/461