CVE-2021-42326
Redmine before 4.1.5 and 4.2.x before 4.2.3 may disclose the names of users on activity views due...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-42326- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2021-42326- Updated
- 2026-11-02
EUVDEUVD-2021-29300 No score
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.
- Record
EUVD-2021-29300- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6rmc-qmcc-wm8g
Redmine before 4.1.5 and 4.2.x before 4.2.3 may disclose the names of users on activity views due...
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.
- Record
GHSA-6rmc-qmcc-wm8g- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2021-42326- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2021-42326
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.
- Record
DEBIAN-CVE-2021-42326- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2021-42326
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.
- Record
UBUNTU-CVE-2021-42326- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVBIT-redmine-2021-42326 No score
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.
- Record
BIT-redmine-2021-42326- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
redmineBitnami |
before 4.1.5, 4.2.0 up to 4.2.3 | 4.1.54.2.3 |
redmineDebian:12 |
before 5.0.0-1 | 5.0.0-1 |
redmineDebian:13 |
before 5.0.0-1 | 5.0.0-1 |
redmineDebian:14 |
before 5.0.0-1 | 5.0.0-1 |
redmineDebian:9 |
before 3.3.1-4+deb9u5, plus listed versions 3.3.1-43.3.1-4+deb9u13.3.1-4+deb9u23.3.1-4+deb9u33.3.1-4+deb9u4 |
3.3.1-4+deb9u5 |
redmineUbuntu:16.04:LTS |
All versions, plus listed versions 3.0~20140825-83.2.0-13.2.0-33.2.1-13.2.1-23.2.1-2ubuntu0.2 |
None known |
redmineUbuntu:18.04:LTS |
All versions, plus listed versions 3.3.1-43.4.2-13.4.4-13.4.4-1ubuntu0.1 |
None known |
redmineUbuntu:20.04:LTS |
All versions, plus listed versions 4.0.4-14.0.4-34.0.6-2 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-42326 is a medium vulnerability (CVSS 5.3) in Redmine, published October 12, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.17%, the 67th percentile. Fixed in redmine 4.1.5.