UpHeron
All vulnerabilities

Servers and applications

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.

Severity
Medium 5.3
Published
28 Apr 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
4.0.9, 4.1.3
Sources
NVD

Affected software

SoftwareAffected versions
RedmineServers and applications · cpe:a:redmine:redmine
  • Every version before 4.0.9
  • From 4.1.0 before 4.1.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-31866
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-31866