All vulnerabilities
CVE-2026-55252GHSA-h5g6-xmh4-hc37GO-2026-5956

OpenRun: Redirect URL validation bypass using //host paths leads to Open Redirect

openrundev openrunGoLibraries & packages
Open in ThreatlineRecord JSON
CVSS
5.1Medium
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 1 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.32%Chance of exploitation activity in the next 30 days, higher than 23% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in0.17.7Fixed versionOSV
Published1 Oct 2026Updated 16 Oct 2026CVE List

What fixes it

  • 0.17.7github.com/openrundev/openrun, GoOSVgo get github.com/openrundev/openrun@v0.17.7

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

OpenRun is an open-source, self-hosted GitOps platform for deploying web apps and internal tools to Docker or Kubernetes. Prior to version 0.17.7, the restrictions on redirect URLs in openrun can be bypassed by attackers, leading to open redirect attacks. This issue has been patched in version 0.17.7.

Text from CVE List

Affected versions 2

  • openrunaffected: < 0.17.7CVE List
  • github.com/openrundev/openrun, Gofrom first release, fixed in 0.17.7OSV

References 3