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Fencer Vulns
medium 5.3

CVE-2021-42326 json

Redmine before 4.1.5 and 4.2.x before 4.2.3 may disclose the names of users on activity views due to an insufficient access filter.

published 2021-10-12 5 y ago modified 2026-09-08 2 mo ago also BIT-redmine-2021-42326 , EUVD-2021-29300

cvss
5.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 67%
public exploits
0
none known

Summary

Redmine before 4.1.5 and 4.2.x before 4.2.3 may disclose the names of users on activity views due to an insufficient access filter.

Patch / fix

  • bitnami redmine 4.1.5, 4.2.3
  • redmine redmine 4.1.5, 4.2.3
  • redmine Debian 14, Debian 13, Debian 12 5.0.0-1

debian advisories DEBIAN-CVE-2021-42326

  • redmine Arch Linux 4.2.3-1

arch linux advisories AVG-2462

Exploit prediction

1.17% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N
OSV 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
bitnami redmine
<4.1.5
>=4.2.0, <4.2.3
4.1.5
4.2.3

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.