CVE-2021-31865 json
Redmine before 4.0.9, 4.1.x before 4.1.3, and 4.2.x before 4.2.1 allows users to circumvent the allowed filename extensions of uploaded att…
published 2021-04-28 5 y ago modified 2026-09-08 2 mo ago also BIT-redmine-2021-31865 , EUVD-2021-18740
- cvss
- 5.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 66%
- public exploits
- 0
- none known
Summary
Redmine before 4.0.9, 4.1.x before 4.1.3, and 4.2.x before 4.2.1 allows users to circumvent the allowed filename extensions of uploaded attachments.
Patch / fix
- bitnami redmine 4.0.9, 4.1.3, 4.2.1
- redmine redmine 4.0.9, 4.1.3, 4.2.1
- redmine Debian 14, Debian 13, Debian 12 5.0.0-1
debian advisories DEBIAN-CVE-2021-31865
- redmine Arch Linux 4.2.1-1
arch linux advisories AVG-1743
Exploit prediction
1.13% chance of exploitation in the next 30 days, higher than 66% 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:N/I:L/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
| OSV | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | redmine | <4.0.9 >=4.1.0, <4.1.3 >=4.2.0, <4.2.1 |
4.0.9 4.1.3 4.2.1 |
References
-
redmine.org
/projects/redmine/wiki/Security_Advisories
vendor-advisory, advisory
-
redmine.org
/news/131
vendor-advisory, advisory
-
lists.debian.org
/debian-lts-announce/2021/05/msg00013.html
mailing-list, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-31865
web
Sources
- CVE List CVE-2021-31865
- NVD CVE-2021-31865
- OSV BIT-redmine-2021-31865
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.