CVE-2026-44347: CSRF in Warpgate Bastion Host
Platform
linux
Component
warpgate
Fixed in
0.23.3
CVE-2026-44347 describes a Cross-Site Request Forgery (CSRF) vulnerability affecting Warpgate, an open-source bastion host. This flaw allows an attacker to potentially impersonate a legitimate user and execute actions within their Warpgate session, such as writing sensitive data to a target SSH server or logging into an HTTP target. The vulnerability impacts versions 0.0.0 up to, but not including, 0.23.3 and has been resolved in version 0.23.3.
Impact and Attack Scenarios
The primary impact of this CSRF vulnerability lies in the potential for unauthorized actions performed under the guise of a legitimate user. An attacker could craft malicious links or embed requests within trusted websites to trick a user into unknowingly executing commands within their Warpgate session. For instance, an attacker could force a user to write sensitive data, like SSH keys or passwords, to a server they control. This could lead to complete compromise of the target system. Furthermore, if Warpgate is used to access HTTP targets, the attacker could potentially trigger actions on those targets, expanding the blast radius of the attack. The successful exploitation of this vulnerability hinges on the attacker's ability to deceive the user into clicking a malicious link or visiting a compromised website.
Exploitation Context
As of the publication date, CVE-2026-44347 is not listed on KEV (Kernel Exploit Vulnerability Database) or EPSS (Exploit Prediction Scoring System). The CVSS score of 5.8 (Medium) suggests a moderate probability of exploitation. Public proof-of-concept (POC) code is currently unavailable, but the CSRF nature of the vulnerability makes it relatively straightforward to exploit once a suitable target is identified. Monitor security advisories and threat intelligence feeds for any indications of active exploitation campaigns targeting Warpgate instances.
Threat Intelligence
Exploit Status
CVSS Vector
What do these metrics mean?
- Attack Vector
- Network — remotely exploitable over the internet. No physical or local access required. Widest attack surface.
- Attack Complexity
- High — requires a race condition, non-default configuration, or specific circumstances. Harder to exploit reliably.
- Privileges Required
- Low — any valid user account is sufficient. Basic authenticated access required.
- User Interaction
- Required — victim must take an action: open a file, click a link, or visit a crafted page.
- Scope
- Changed — successful attack can pivot beyond the vulnerable component to other systems or the host OS.
- Confidentiality
- None — no confidentiality impact. Attacker cannot read protected data.
- Integrity
- High — attacker can write, modify, or delete any data: databases, config files, or code.
- Availability
- None — no availability impact. Service remains fully operational.
Affected Software
Weakness Classification (CWE)
Timeline
- Published
Mitigation and Workarounds
The recommended mitigation for CVE-2026-44347 is to immediately upgrade Warpgate to version 0.23.3 or later. If an immediate upgrade is not feasible due to compatibility concerns or system downtime requirements, consider implementing temporary workarounds. While a direct WAF rule to prevent CSRF is complex, enforcing strict content security policies (CSP) on Warpgate's web interface can help mitigate the risk by restricting the sources from which scripts can be executed. Regularly review and audit Warpgate configurations to ensure best practices are followed. After upgrading, confirm the fix by attempting to trigger a CSRF request through a known vulnerable endpoint and verifying that the request is rejected.
How to fix
Actualice Warpgate a la versión 0.23.3 o superior para mitigar la vulnerabilidad. Esta actualización valida correctamente el parámetro de estado en el flujo de SSO, previniendo que un atacante pueda engañar a un usuario para que inicie sesión en su cuenta y realice acciones maliciosas.
Frequently asked questions
What is CVE-2026-44347 — CSRF in Warpgate?
CVE-2026-44347 is a Cross-Site Request Forgery (CSRF) vulnerability in Warpgate, allowing attackers to trick users into performing actions on their attacker-controlled account.
Am I affected by CVE-2026-44347 in Warpgate?
You are affected if you are running Warpgate versions 0.0.0 through 0.23.2. Upgrade to 0.23.3 or later to resolve the vulnerability.
How do I fix CVE-2026-44347 in Warpgate?
Upgrade Warpgate to version 0.23.3 or later. Consider implementing content security policies (CSP) as a temporary workaround.
Is CVE-2026-44347 being actively exploited?
As of the publication date, there are no public reports of active exploitation, but the vulnerability's nature suggests a potential for exploitation.
Where can I find the official Warpgate advisory for CVE-2026-44347?
Refer to the Warpgate project's official website and security advisories for the latest information: [https://warpgate.io/](https://warpgate.io/)
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