CVE-2026-27706 Plane Vulnerable to Full Read SSRF via Favicon Fetching in "Add Link" Feature

High 7.7 Published 25 Feb 2026 Updated 25 Feb 2026

Authenticated attackers can exploit SSRF in the Add Link feature to read internal network data and cloud metadata.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-27706?

CVE-2026-27706 is a high-severity server-side request forgery vulnerability in makeplane plane, published on 25 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Plane is an an open-source project management tool. Prior to version 1.2.2, a Full Read Server-Side Request Forgery (SSRF) vulnerability has been identified in the "Add Link" feature. This flaw allows an authenticated attacker with general user privileges to send arbitrary GET requests to the internal network and exfiltrate the full response body. By exploiting this vulnerability, an attacker can steal sensitive data from internal services and cloud metadata endpoints. Version 1.2.2 fixes the issue.

Weakness: CWE-918

Which versions are affected by CVE-2026-27706?

It affects 1 product.

Products include Plane Plane.

How do I fix CVE-2026-27706?

No fix has been published for CVE-2026-27706 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2026-27706 being exploited?

There is no known exploitation of CVE-2026-27706 in the wild and no public exploit code.

Sources

Also known as GHSA-jcc6-f9v6-f7jw.