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.
CVE-2020-26238
This high-severity CVE scores 7.9 under NVD CVSS v3. EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.9
- EG Score
- 7.9(low)
- EPSS
- 89.8%
- KEV
- Not listed
Published
November 25, 2020
Last Modified
November 21, 2024
References (26)
- security-advisories@githubhttps://github.com/jmrozanec/cron-utils/commit/4cf373f7352f5d95f0bf6512af8af326b31c835e
- security-advisories@githubhttps://github.com/jmrozanec/cron-utils/issues/461
- security-advisories@githubhttps://github.com/jmrozanec/cron-utils/security/advisories/GHSA-pfj3-56hm-jwq5
- security-advisories@githubhttps://lists.apache.org/thread.html/r390bb7630b7ea8f02bf7adbbe69c0ae8b562c527d663c543d965f959%40%3Cgitbox.hive.apache.org%3E
- security-advisories@githubhttps://lists.apache.org/thread.html/r432a69a1a85cbcb1f1bad2aa0fbfce0367bf894bf917f6ed7118e7f0%40%3Cissues.hive.apache.org%3E
- security-advisories@githubhttps://lists.apache.org/thread.html/r50e1b5544c37e408ed7e9a958b28237b1cb9660ba2b3dba46f343e23%40%3Cissues.hive.apache.org%3E
- security-advisories@githubhttps://lists.apache.org/thread.html/r5f601d15292e3302ad0ae0e89527029546945b1cd5837af7e838d354%40%3Cdev.hive.apache.org%3E
- security-advisories@githubhttps://lists.apache.org/thread.html/r71083c759dc627f198571b3d48b6745fe798b1d53c34f7ef8de9e7dd%40%3Cissues.hive.apache.org%3E
- security-advisories@githubhttps://lists.apache.org/thread.html/r737406bc17d49ffe8fe6a8828d390ee0a02e45e5a5b4f931180b9a93%40%3Cissues.hive.apache.org%3E
- security-advisories@githubhttps://lists.apache.org/thread.html/r855aead591697dc2e85faf66c99036e49f492431940b78d4e6d895b5%40%3Cgitbox.hive.apache.org%3E
- security-advisories@githubhttps://lists.apache.org/thread.html/r96937fc9c82f3201b59311c067e97bce71123944f93102169a95bf5c%40%3Cissues.hive.apache.org%3E
- security-advisories@githubhttps://lists.apache.org/thread.html/r9ae9a9fb1c8e2bf95c676e7e4cd06aa04f0a3a8a9ec1a6b787afb00f%40%3Cissues.hive.apache.org%3E
- security-advisories@githubhttps://lists.apache.org/thread.html/ra9e81244d323898dde3c979dd7df6996e4037d14a01b6629ea443548%40%3Cissues.hive.apache.org%3E
- af854a3a-2127-422b-91ae-364da2661108https://github.com/jmrozanec/cron-utils/commit/4cf373f7352f5d95f0bf6512af8af326b31c835e
- af854a3a-2127-422b-91ae-364da2661108https://github.com/jmrozanec/cron-utils/issues/461
Patch Availability(3)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | patch | 2021-08-18 | redhat |
| redhat | patch | 2021-08-18 | redhat |
| redhat | cron-utils | 2021-03-29 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
Maven(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| com.cronutils:cron-utils | 1.0.0 ... 9.1.2 (48 versions) | 9.1.3 | — |
All Vendor Advisories
(3)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 9× in last 7d / 38× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:25 UTCEPSS rescore
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- 2026-06-25 13:48 UTCEPSS rescore
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- 2026-06-24 14:03 UTCEPSS rescore
- 2026-06-24 08:29 UTCOSV refresh
- 2026-06-23 21:31 UTCEPSS rescore
- 2026-06-23 21:31 UTCEPSS rescore
- 2026-06-22 14:23 UTCEPSS rescore
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- 2026-06-21 14:54 UTCEPSS rescore
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- 2026-06-21 01:57 UTCEPSS rescore
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- 2026-06-15 17:46 UTCEPSS rescore
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- 2026-06-11 13:58 UTCEPSS rescore
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- 2026-06-07 15:23 UTCEPSS rescore
- 2026-06-07 15:23 UTCEPSS rescore
- 2026-06-07 12:29 UTCOSV refresh
- 2026-06-06 13:46 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-05 22:45 UTCEPSS rescore
- 2026-06-05 22:45 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
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- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-02 20:11 UTCEPSS rescore
- 2026-06-02 20:11 UTCEPSS rescore
- 2026-05-31 22:29 UTCEPSS rescore
- 2026-05-31 22:29 UTCEPSS rescore
- 2026-05-31 00:15 UTCEPSS rescore
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- 2026-05-29 13:42 UTCEPSS rescore
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- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-27 13:39 UTCEPSS rescore
- 2026-05-24 16:48 UTCEPSS rescore
- 2026-05-23 04:52 UTCEG score recompute
- 2026-05-23 04:52 UTCVendor advisory
Related CVEs(same vendor + same CWE)
Same vendor
10 shownredhat
Same CWE
10 shownCWE-74
- CVE-2015-10062NVD 5.5EG 9.8MEDIUM
- CVE-2015-10027NVD 5.5EG 9.8MEDIUM
- CVE-2016-15007NVD 5.5EG 9.8MEDIUM
- CVE-2016-15004NVD 7.3EG 9.8HIGH
- CVE-2013-4144EG 9.8CRITICAL
- CVE-2013-7487EG 9.8CRITICAL
- CVE-2014-4678EG 9.8EPSS 91%CRITICAL
- CVE-2014-4967EG 9.8CRITICAL
- CVE-2014-4966EG 9.8CRITICAL
- CVE-2013-7381EG 9.8CRITICAL
Frequently asked(5)
What is CVE-2020-26238?
When was CVE-2020-26238 disclosed?
Is CVE-2020-26238 actively exploited?
What is the CVSS score of CVE-2020-26238?
How do I remediate CVE-2020-26238?
Dependency Blast Radius
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