{"id":"CVE-2021-3374","aliases":["EUVD-2021-26705","GHSA-5c9r-9v3g-ggvp"],"status":"published","title":"Directory traversal in RStudio Shiny Server before 1.5.16 allows attackers to read the...","description":"Directory traversal in RStudio Shiny Server before 1.5.16 allows attackers to read the application source code, involving an encoded slash.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.14808,"percentile":0.96708,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2021-04-02T18:13:44Z","modified":"2026-06-17T04:04:59Z","exploits":[{"source":"nuclei","id":"CVE-2021-3374","title":"Rstudio Shiny Server \u003c1.5.16 - Local File Inclusion","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-3374.yaml"}],"products":[{"vendor":"rstudio","product":"shiny_server"}],"references":[{"url":"https://github.com/colemanjp/shinyserver-directory-traversal-source-code-leak","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://blog.rstudio.com/2021/01/13/shiny-server-1-5-16-update/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3374"},{"url":"https://blog.rstudio.com/2021/01/13/shiny-server-1-5-16-update"},{"url":"https://github.com/advisories/GHSA-5c9r-9v3g-ggvp"}],"sources":{"cve":[{"id":"CVE-2021-3374","description":"Directory traversal in RStudio Shiny Server before 1.5.16 allows attackers to read the application source code, involving an encoded slash.","status":"published","published":"2021-04-02T18:13:44Z","modified":"2024-08-03T16:53:17.317Z","updated_at":"2026-11-02T14:33:04.020035Z"}],"euvd":[{"id":"EUVD-2021-26705","description":"Directory traversal in RStudio Shiny Server before 1.5.16 allows attackers to read the application source code, involving an encoded slash.","status":"published","published":"2021-04-02T18:13:44Z","modified":"2024-08-03T16:53:17Z","updated_at":"2026-11-03T03:25:13.052236Z"}],"ghsa":[{"id":"GHSA-5c9r-9v3g-ggvp","title":"Directory traversal in RStudio Shiny Server before 1.5.16 allows attackers to read the...","description":"Directory traversal in RStudio Shiny Server before 1.5.16 allows attackers to read the application source code, involving an encoded slash.","status":"published","published":"2022-05-24T17:46:28Z","modified":"2024-04-04T03:05:49Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:56:13.784244Z"}],"nvd":[{"id":"CVE-2021-3374","description":"Directory traversal in RStudio Shiny Server before 1.5.16 allows attackers to read the application source code, involving an encoded slash.","status":"published","published":"2021-04-02T19:15:21.163Z","modified":"2026-06-17T04:04:59.843Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:06:51.197859Z"}]}}