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Vulnerability record · CVE-2026-28505 · published 30 March 2026

CVE-2026-28505: Tautulli code injection vulnerability

Tautulli · Tautulli

Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Prior to version 2.17.0, the str_eval() function in notification_handler.py implements a sandboxed eval() for notification text templates. The sandbox attempts to restrict callable names by inspecting code.co_names of the compiled code object. However, co_names only contains names from the outer code object. When a lambda expression is used, it creates a nested code object whose attribute accesses are stored in code.co_consts, NOT in code.co_names. The sandbox never inspects nested code objects. This issue has been patched in version 2.17.0.

7.5 CVSS 4.0 High EPSS 0.55% · top 56.0% CWE-94 · Code injectionCWE-95 · CWE-95
7.5CVSS 4.0 base score
0.55%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Prior to version 2.17.0, the str_eval() function in notification_handler.py implements a sandboxed eval() for notification text templates. The sandbox attempts to restrict callable names by inspecting code.co_names of the compiled code object. However, co_names only contains names from the outer code object. When a lambda expression is used, it creates a nested code object whose attribute accesses are stored in code.co_consts, NOT in code.co_names. The sandbox never inspects nested code objects. This issue has been patched in version 2.17.0.

CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

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

References

LinkTags
https://github.com/Tautulli/Tautulli/releases/tag/v2.17.0 Release Notes
https://github.com/Tautulli/Tautulli/security/advisories/GHSA-m62j-gwm9-7p8m ExploitVendor Advisory

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Related vulnerabilities

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

8.7CVE-2026-31831Tautulli relative path traversal vulnerabilityTautulli is a Python based monitoring and tracking tool for Plex Media Server. Prior to version 2.17.0, the /newsletter/image/images API endpoint is …EPSS 1.9%7.5CVE-2025-58760Tautulli relative path traversal vulnerabilityTautulli is a Python based monitoring and tracking tool for Plex Media Server. The `/image` API endpoint in Tautulli v2.15.3 and earlier is vulnerabl…EPSS 0.64%7.5CVE-2025-58761Tautulli vulnerabilityTautulli is a Python based monitoring and tracking tool for Plex Media Server. The `real_pms_image_proxy` endpoint in Tautulli v2.15.3 and prior is v…EPSS 0.68%7.4CVE-2026-32275Tautulli cross-site scripting vulnerabilityTautulli is a Python based monitoring and tracking tool for Plex Media Server. From version 1.3.10 to before version 2.17.0, an unsanitized JSONP cal…EPSS 0.42%7.2CVE-2025-58763Tautulli os command injection vulnerabilityTautulli is a Python based monitoring and tracking tool for Plex Media Server. A command injection vulnerability in Tautulli v2.15.3 and prior allows…EPSS 1.7%7.2CVE-2025-58762Tautulli vulnerabilityTautulli is a Python based monitoring and tracking tool for Plex Media Server. In Tautulli v2.15.3 and earlier, an attacker with administrative acces…EPSS 0.82%6.5CVE-2019-19833Tautulli cross-site request forgery vulnerabilityIn Tautulli 2.1.9, CSRF in the /shutdown URI allows an attacker to shut down the remote media server. (Also, anonymous access can be achieved in appl…EPSS 15%6.1CVE-2019-8939Tautulli cross-site scripting vulnerabilitydata/interfaces/default/history.html in Tautulli 2.1.26 has XSS via a crafted Plex username that is mishandled when constructing the History page.EPSS 1.1%

Source: NIST National Vulnerability Database (record CVE-2026-28505), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.