Vulnerability · Published Oct 1, 2026 · Assigned by GitHub_M
CVE-2026-55252OpenRun: Redirect URL validation bypass using //host paths leads to Open Redirect
Medium 5.1
In plain English
A medium-severity open redirect in openrun from openrundev. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)5.1Medium
Exploit odds (30 days)0.4%top 64.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/openrundev/openrun | 0.17.7 | GHSA-h5g6-xmh4-hc37 |
| Go | github.com/openrundev/openrun | 0.17.7 | GO-2026-5956 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| openrundev | openrun | < 0.17.7 |
Weakness: CWE-601 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N