CVE-2021-31864
MEDIUMCVSS 5.3/10EPSS 1.19%
Last modified
CVE-2021-31864 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Redmine before 4.0.9, 4.1.x before 4.1.3, and 4.2.x before 4.2.1 allows attackers to bypass the add_issue_notes permission requirement by leveraging the incoming mail handler.. EPSS estimates a 1.19% chance of exploitation in the next 30 days.
Description
Redmine before 4.0.9, 4.1.x before 4.1.3, and 4.2.x before 4.2.1 allows attackers to bypass the add_issue_notes permission requirement by leveraging the incoming mail handler.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Redmine | Redmine | < 4.0.9 |
| Redmine | Redmine | >= 4.1.0, < 4.1.3 |
| Redmine | Redmine | >= 4.2.0, < 4.2.1 |
| Debian | Debian Linux | 9.0 |
References
- https://lists.debian.org/debian-lts-announce/2021/05/msg00013.htmlMailing List, Third Party Advisory
- https://www.redmine.org/news/131Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/05/msg00013.htmlMailing List, Third Party Advisory
- https://www.redmine.org/news/131Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-31864?
Redmine before 4.0.9, 4.1.x before 4.1.3, and 4.2.x before 4.2.1 allows attackers to bypass the add_issue_notes permission requirement by leveraging the incoming mail handler.
How severe is CVE-2021-31864?
CVE-2021-31864 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.19% probability of exploitation in the next 30 days.
How do I fix CVE-2021-31864?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-31864?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST