Vulnerability in Redmine

CVE-2021-31866

Redmine before 4.0.9 and 4.1.x before 4.1.3 allows an attacker to learn the values of internal authentication keys by observing timing differences in string comparison operations within SysController and MailHandlerController.

EPSS: 0.012 (65.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-31866?
CVE-2021-31866 is a medium-severity vulnerability in Redmine, classified under Observable Discrepancy. CVSS score: 5.3/10. Published 2021-04-28.
How severe is CVE-2021-31866?
Medium severity. CVSS v3 base score is 5.3 out of 10.