CVE-2026-55252

Received Received - Intake

Open Redirect Bypass in OpenRun Platform

Publication date: 2026-10-01

Last updated on: 2026-10-01

Assigner: GitHub, Inc.

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.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-01

Last Modified

2026-10-01

Generated

2026-10-02

AI Q&A

2026-10-02

EPSS Evaluated

N/A

NVD

CVE-2026-55252

Affected Vendors & Products

Vendor	Product	Version / Range
openrundev	openrun	to 0.17.7 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-601	The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.

Attack-Flow Graph

Executive Summary

CVE-2026-55252 is an open redirect bypass vulnerability in OpenRun, a self-hosted GitOps platform. Attackers exploit it by crafting URLs with double slashes (e.g., http://127.0.0.1:25222//fushuling.com) to bypass redirect URL restrictions. Browsers interpret // as protocol-relative, redirecting to external sites like http://fushuling.com.

Detection Guidance

To detect this vulnerability, check if your openrun instance is running a version prior to 0.17.7. Use commands like 'curl -s https://your-openrun-instance.com/version' or inspect the application logs for version details. Look for redirect attempts using URLs starting with // to bypass restrictions.

Impact Analysis

This vulnerability allows attackers to trick users into visiting malicious sites via OpenRun's redirect functionality. It could lead to phishing attacks, credential theft, or malware distribution if users are deceived by legitimate-looking URLs.

Compliance Impact

This vulnerability does not directly affect compliance with GDPR, HIPAA, or similar standards as it is an open redirect issue in a self-hosted GitOps platform. However, if exploited, it could potentially lead to phishing attacks or unauthorized data access, which may indirectly impact compliance by exposing sensitive data or violating access controls.

Mitigation Strategies

Upgrade openrun to version 0.17.7 or later immediately. This version includes a patch that rejects redirect targets starting with //. Verify the fix by testing redirect functionality with malicious URLs.

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