CVE-2021-21670

Description

Jenkins 2.299 and earlier, LTS 2.289.1 and earlier allows users to cancel queue items and abort builds of jobs for which they have Item/Cancel permission even when they do not have Item/Read permission.

4.3

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 2.04% Top 20%

Vendor Advisory jenkins.io

Affected: Jenkins project Jenkins

References

Link	Tags
https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2278	vendor advisory
http://www.openwall.com/lists/oss-security/2021/06/30/1	third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-21670?: CVE-2021-21670 has been scored as a medium severity vulnerability.
How to fix CVE-2021-21670?: To fix CVE-2021-21670, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-21670 being actively exploited in the wild?: It is possible that CVE-2021-21670 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-21670?: CVE-2021-21670 affects Jenkins project Jenkins.

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