Skip to main content
HIGH

CVE-2020-26238

CVSS v3

8.1

HIGH

EPSS Score

4.2 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Get an alert for each new CVE published for cron-utils.

Set up CVE WatchFree account · no credit card

Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • com.cronutils:cron-utilsMavenall versions · fixed in 9.1.3

Vendor advisories

  • CVE-2020-26238 Red Hat Product Security3 products fixed · 2 known affected

    cron-utils: template injection allows attackers to inject arbitrary Java EL expressions leading to remote code execution

    cron-utils as a component of Red Hat Integration Camel K 1 · cron-utils as a component of Red Hat Integration Camel Quarkus 1

  • RHSA-2021:3207 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat Integration Camel Quarkus Tech-Preview 2 security update

  • RHSA-2021:3205 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat Integration Camel-K 1.4 release and security update

  • RHSA-2021:1004 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat build of Quarkus 1.11.6 release and security update

Full record on NVD

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.

Technical details

Published
2020-11-25

Frequently asked questions

What is CVE-2020-26238?

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.

Is CVE-2020-26238 actively exploited?

Active exploitation of CVE-2020-26238 has not been confirmed. Its EPSS score was 4.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-26238?

CVE-2020-26238 has a CVSS v3 base score of 8.1 (HIGH severity).

Running cron-utils? Hear about its next vulnerability

CVE Watch matches each new CVE to the vendors and products you list (vendor and product, not the version) and puts it in your alerts with its KEV and EPSS status.

Get alerts for this productCISA KEV additions, October 2026Search CVEs

Already have an account? Open CVE WatchNo credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database