Vulnerability in Cron-Utils Project
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.
EPSS: 0.042 (89.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.9 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.
Affected products
- Cron-utils_project Cron-utils
- Jmrozanec Cron-utils — versions < 9.1.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
- security-advisories@github.com (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (mailing-list, x_refsource_MLIST)
- security-advisories@github.com (mailing-list, x_refsource_MLIST)
- security-advisories@github.com (mailing-list, x_refsource_MLIST)
- security-advisories@github.com (mailing-list, x_refsource_MLIST)
- security-advisories@github.com (mailing-list, x_refsource_MLIST)
- security-advisories@github.com (mailing-list, x_refsource_MLIST)
- security-advisories@github.com (mailing-list, x_refsource_MLIST)
Frequently asked questions
- What is CVE-2020-26238?
- CVE-2020-26238 is a high-severity vulnerability in Cron-Utils Project, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.9/10. Published 2020-11-25.
- How severe is CVE-2020-26238?
- High severity. CVSS v3 base score is 7.9 out of 10.
- Is CVE-2020-26238 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.