VulnerabilityAnalyzed

CVE-2026-28427

By including ../ sequences in the request path, an attacker can traverse outside the intended directory and read any file OpenDeck can access.

MEDIUM 5.9EPSS 0.43%

Does this matter?

Lower severity and a low EPSS score (0.43%). Track it; it rarely justifies an emergency change on its own.

Description

OpenDeck is Linux software for your Elgato Stream Deck. Prior to 2.8.1, the service listening on port 57118 serves static files for installed plugins but does not properly sanitize path components. By including ../ sequences in the request path, an attacker can traverse outside the intended directory and read any file OpenDeck can access. This vulnerability is fixed in 2.8.1.

CVSS 4.0: 5.9 MEDIUMCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.43% probability · 36th percentile
CISA KEV: Not listed
Weakness: CWE-22, CWE-24
Affected: nekename/opendeck
Source: security-advisories@github.com

References

https://github.com/nekename/OpenDeck/commit/488a52050017e95a72ba448226ac5e19a20dd9edPatch
https://github.com/nekename/OpenDeck/security/advisories/GHSA-4974-g27q-h5m8Exploit, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.