CVE-2021-41269

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    CVE-2021-41269

    Published: 15 Nov 2021Last Modified: 9 Jul 2026

    Summary:

    Details: cron-utils is a Java library to define, parse, validate, migrate crons as well as get human readable descriptions for them. In affected versions A template Injection was identified in cron-utils enabling attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. Versions up to 9.1.2 are susceptible to this vulnerability. Please note, that only projects using the @Cron annotation to validate untrusted Cron expressions are affected. The issue was patched and a new version was released. Please upgrade to version 9.1.6. There are no known workarounds known.

    References: https://github.com/jmrozanec/cron-utils/security/advisories/GHSA-p9m8-27x8-rg87, https://github.com/jmrozanec/cron-utils/issues/461, https://github.com/jmrozanec/cron-utils/commit/cfd2880f80e62ea74b92fa83474c2aabdb9899da, https://github.com/jmrozanec/cron-utils/commit/d6707503ec2f20947f79e38f861dba93b39df9da

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -d78d40bbfc09a0a2626a967d2529e3f561f860b7

    Affected versions

    9.1.5
    9.1.4
    9.1.2

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-41269 | CVE-DB