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.

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History

Mon, 05 Oct 2026 19:45:00 +0000

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

Mon, 05 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Mon, 05 Oct 2026 18:00:00 +0000

Type Values Removed Values Added
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.
Title Plane: Incomplete fix of CVE-2026-27706 — SSRF still reachable on: missing is_blocked_ip (CGNAT/multicast) + DNS-rebinding TOCTOU
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'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-05T18:40:11.398Z

Reserved: 2026-10-02T18:16:13.629Z

Link: CVE-2026-104977

cve-icon Vulnrichment

Updated: 2026-10-05T18:40:07.020Z

cve-icon NVD

Status : Deferred

Published: 2026-10-05T18:17:33.080

Modified: 2026-10-05T19:17:15.790

Link: CVE-2026-104977

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-05T19:30:21Z

Weaknesses