CVE-2021-41269

Unauthenticated remote code injection in cron-utils

Published Nov 15, 2021 CVSS 3.1 · 10 Critical EPSS 4.3% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-2371 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.
Github GHSA Github GHSA GHSA-p9m8-27x8-rg87 Critical vulnerability found in cron-utils
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 4, 2024, 3:08 AM
Reserved
Sep 15, 2021, 12:00 AM
Status
Modified
Published
Nov 15, 2021, 9:15 PM
Modified
Jun 17, 2026, 4:08 AM
Severity
Critical
Public date
Nov 17, 2021, 12:00 AM