CVE-2026-28505 is a critical remote code execution (RCE) vulnerability affecting Tautulli versions prior to 2.17.0. The flaw allows an attacker to bypass a sandboxed `eval()` function in notification templates by exploiting how lambda expressions create nested code objects, enabling arbitrary code execution. With a CVSS score of 10.0, this vulnerability is easily exploitable over the network without authentication or user interaction, leading to full compromise of the affected system. While no public exploit code is currently available, it is listed on the Hot List as active and has garnered initial community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.17.0CPE matchmatch criteria | cpe:2.3:a:tautulli:tautulli:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
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:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.