CVE-2021-3374
MEDIUMCVSS 5.3/10EPSS 14.25%
Last modified
CVE-2021-3374 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Directory traversal in RStudio Shiny Server before 1.5.16 allows attackers to read the application source code, involving an encoded slash.. EPSS estimates a 14.25% chance of exploitation in the next 30 days.
Description
Directory traversal in RStudio Shiny Server before 1.5.16 allows attackers to read the application source code, involving an encoded slash.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Rstudio | Shiny Server | < 1.5.16 |
References
- https://github.com/colemanjp/shinyserver-directory-traversal-source-code-leakExploit, Third Party Advisory
- https://github.com/colemanjp/shinyserver-directory-traversal-source-code-leakExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-3374?
Directory traversal in RStudio Shiny Server before 1.5.16 allows attackers to read the application source code, involving an encoded slash.
How severe is CVE-2021-3374?
CVE-2021-3374 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 14.25% probability of exploitation in the next 30 days.
How do I fix CVE-2021-3374?
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-2021-3374?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST