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CVE-2021-41269

31
FAUCET Score

CVE-2021-41269 is a critical unauthenticated Remote Code Execution (RCE) vulnerability affecting cron-utils versions up to 9.1.2. It stems from a template injection flaw allowing attackers to inject arbitrary Java EL expressions when the @Cron annotation is used to validate untrusted Cron expressions. With a CVSS score of 9.8, this vulnerability has a network attack vector, low attack complexity, and results in complete compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.1.6CPE matchmatch criteria
cpe:2.3:a:cron-utils_project:cron-utils:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

10.0CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.05%
Probability of exploitation in next 30 days
EPSS Percentile
89.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0405 is in the 83rd percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: com.cronutils:cron-utilsFixed in: 9.1.6
redhatpatch availablevia redhat_api
Product: Red Hat build of Quarkus 2.2.5Fixed in: cron-utils
View patch
redhatpatch availablevia redhat_api
Product: RHINT Camel-Q 2.2.1
View patch
redhatpatch availablevia redhat_api
Product: RHINT Service Registry 2.3.0 GAFixed in: cron-utils
View patch
redhatno patchvia redhat_api
Product: Red Hat build of QuarkusFixed in: cron-utils
redhatno patchvia redhat_api
Product: Red Hat Integration Camel Quarkus 1Fixed in: cron-utils

Vendor Advisories (2)

redhatCVE-2021-41269Critical

cron-utils: template Injection leading to unauthenticated Remote Code Execution

Nov 17, 2021
mavenGHSA-p9m8-27x8-rg87critical

Critical vulnerability found in cron-utils

Nov 15, 2021

References

github.com / jmrozanec/cron-utils/commit/cfd2880f80e62ea74b92fa83474c2aabdb9899da
PatchThird Party Advisory
github.com / jmrozanec/cron-utils/commit/d6707503ec2f20947f79e38f861dba93b39df9da
PatchThird Party Advisory
github.com / jmrozanec/cron-utils/issues/461
ExploitIssue TrackingThird Party Advisory
github.com / jmrozanec/cron-utils/security/advisories/GHSA-p9m8-27x8-rg87
Third Party Advisory