CVE-2026-28505
criticalpriority · track · 40EPSS 0.005 · 42 %ileEUUSEPSS · scored 2026-10-28
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 4.8–10
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2026-28505cnnvd
- https://github.com/Tautulli/Tautulli/releases/Patchcnnvd
- https://github.com/Tautulli/Tautulli/releases/tag/v2.17.0cnnvd
- https://github.com/Tautulli/Tautulli/security/advisories/GHSA-m62j-gwm9-7p8mcnnvd
- https://github.com/Tautulli/Tautulli/releases/tag/v2.17.0enisa_euvd
- https://github.com/Tautulli/Tautulli/security/advisories/GHSA-m62j-gwm9-7p8menisa_euvd
- https://github.com/Tautulli/Tautulli/releases/tag/v2.17.0Release Notesnvd
- https://github.com/Tautulli/Tautulli/security/advisories/GHSA-m62j-gwm9-7p8mExploitVendor Advisorynvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan