CVE-2026-104977

Published: Oct 5, 2026Modified: Oct 5, 2026Deferred

7.7

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Exploitability: 3.1 / Impact: 4.0

Source: security-advisories@github.com (Secondary)

Description

Plane is an open-source project management tool. Prior to 1.4.0, the fix for CVE-2026-27706 and GHSA-jcc6-f9v6-f7jw, an SSRF in work-item link unfurling shipped in v1.2.2, remains incomplete in the v1.3.1 GA release. Any authenticated project member can make the server fetch attacker-selected internal targets, including cloud metadata at 169.254.169.254, and read the response body returned as the link title or favicon. Complete hardening exists on main in PR 9163 but was not included in an earlier released tag. This issue is fixed in 1.4.0.

Related CWEs

CWE-918

Server-Side Request Forgery (SSRF)

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

References (5)

https://github.com/makeplane/plane/commit/04622ce1188c4680951f0001e35efb342fe51615

Source: security-advisories@github.com

https://github.com/makeplane/plane/pull/9163

Source: security-advisories@github.com

https://github.com/makeplane/plane/releases/tag/v1.4.0

Source: security-advisories@github.com

https://github.com/makeplane/plane/security/advisories/GHSA-hhj8-7hv6-m74r

Source: security-advisories@github.com

https://github.com/makeplane/plane/security/advisories/GHSA-hhj8-7hv6-m74r

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

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