CVE-2026-28427: OpenDeck is Linux software for your Elgato Stream Deck

Q: How do I fix CVE-2026-28427?

opendeck: upgrade to 2.8.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-28427 being exploited?

CVE-2026-28427 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-28427 affect?

CVE-2026-28427 affects opendeck. Severity is high (CVSS 7.5). 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

Q: How urgent is CVE-2026-28427?

Priority 51/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

This week

HIGH 7.5REMOTEWATCHLISTUPGRADE

CVE-2026-28427 is a high-severity flaw (CVSS 7.5) affecting opendeck. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-22, CWE-24
Published	2026-03-04
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: nekename

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-04 20:16 UTCPublished CVE record published
2026-06-17 10:28 UTCUpdated Record last modified

nekename opendeck UPGRADE

Affected: < 2.8.1

Fixed in: 2.8.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy opendeck || rpm -q opendeck || opendeck --version

2. UPGRADE to 2.8.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade opendeck

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade opendeck

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-28427?

opendeck: upgrade to 2.8.1. Exact commands for each OS are on this page.

Is CVE-2026-28427 being exploited?

CVE-2026-28427 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-28427 affect?

CVE-2026-28427 affects opendeck. Severity is high (CVSS 7.5). 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

How urgent is CVE-2026-28427?

Priority 51/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

References

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