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Vulnerability record · CVE-2021-41826 · published 30 September 2021

CVE-2021-41826: Placeos authentication open redirect vulnerability

Place · Placeos Authentication

PlaceOS Authentication Service before 1.29.10.0 allows app/controllers/auth/sessions_controller.rb open redirect.

6.1 CVSS 3.1 Medium EPSS 12% · top 4.0% CWE-601 · Open redirect
6.1CVSS 3.1 base score, v2 5.8
12%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

PlaceOS Authentication Service before 1.29.10.0 allows app/controllers/auth/sessions_controller.rb open redirect.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/164345/PlaceOS-1.2109.1-Open-Redirection.html ExploitThird Party AdvisoryVDB Entry
https://github.com/PlaceOS/auth/issues/36 ExploitPatchThird Party Advisory
http://packetstormsecurity.com/files/164345/PlaceOS-1.2109.1-Open-Redirection.html ExploitThird Party AdvisoryVDB Entry
https://github.com/PlaceOS/auth/issues/36 ExploitPatchThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

4.7CVE-2012-0518Oracle Fusion Middleware SSO open redirect flawOracle Fusion Middleware 10.1.4.3.0 contains an unspecified open redirect vulnerability in the Application Server Single Sign-On component, tracked a…KEVEPSS 4.7%analysed6.1CVE-2021-38000Google Chrome Android Intents input validation open redirectChrome on Android before 95.0.4638.69 fails to properly validate untrusted input passed through Intents, allowing a crafted HTML page to redirect the…KEVEPSS 4.9%analysed

Source: NIST National Vulnerability Database (record CVE-2021-41826), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.