High severity7.9NVD Advisory· Published Nov 25, 2020· Updated Jun 17, 2026
CVE-2020-26238
CVE-2020-26238
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
com.cronutils:cron-utilsMaven | < 9.1.3 | 9.1.3 |
Affected products
3- Range: < 9.1.3
Patches
Vulnerability mechanics
References
25- github.com/jmrozanec/cron-utils/commit/4cf373f7352f5d95f0bf6512af8af326b31c835envdPatchThird Party AdvisoryWEB
- github.com/jmrozanec/cron-utils/issues/461nvdExploitIssue TrackingThird Party AdvisoryWEB
- github.com/jmrozanec/cron-utils/security/advisories/GHSA-pfj3-56hm-jwq5nvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-pfj3-56hm-jwq5ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2020-26238ghsaADVISORY
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