Plane is an an open-source project management tool. From 0.28.0 to before 1.3.0, the remediation of GHSA-jcc6-f9v6-f7jw is incomplete which could lead to the same full read Server-Side Request Forgery when a normal html page contains a link tag with an href that redirects to a private IP address is supplied to Add link by an authenticated attacker with low privileges. Redirects for the main page URL are validated, but not the favicon fetch path. fetch_and_encode_favicon() still uses requests.get(favicon_url, ...) with the default redirect-following. This vulnerability is fixed in 1.3.0.
History

Fri, 17 Apr 2026 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Plane
Plane plane
CPEs cpe:2.3:a:plane:plane:*:*:*:*:*:*:*:*
Vendors & Products Plane
Plane plane

Mon, 13 Apr 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 10 Apr 2026 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Makeplane
Makeplane plane
Vendors & Products Makeplane
Makeplane plane

Thu, 09 Apr 2026 16:00:00 +0000

Type Values Removed Values Added
Description Plane is an an open-source project management tool. From 0.28.0 to before 1.3.0, the remediation of GHSA-jcc6-f9v6-f7jw is incomplete which could lead to the same full read Server-Side Request Forgery when a normal html page contains a link tag with an href that redirects to a private IP address is supplied to Add link by an authenticated attacker with low privileges. Redirects for the main page URL are validated, but not the favicon fetch path. fetch_and_encode_favicon() still uses requests.get(favicon_url, ...) with the default redirect-following. This vulnerability is fixed in 1.3.0.
Title Plane has a Server-Side Request Forgery (SSRF) in Favicon Fetching
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-13T20:05:32.594Z

Reserved: 2026-04-07T19:13:20.377Z

Link: CVE-2026-39843

cve-icon Vulnrichment

Updated: 2026-04-13T20:05:29.218Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-09T16:16:31.087

Modified: 2026-04-17T20:08:53.647

Link: CVE-2026-39843

cve-icon Redhat

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