CVE-2026-104977
highPlane is an open-source project management tool.
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/makeplane/plane/commit/04622ce1188c4680951f0001e35efb342fe51615 security-advisories@github.com
- https://github.com/makeplane/plane/pull/9163 security-advisories@github.com
- https://github.com/makeplane/plane/releases/tag/v1.4.0 security-advisories@github.com
- https://github.com/makeplane/plane/security/advisories/GHSA-hhj8-7hv6-m74r security-advisories@github.com
- https://github.com/makeplane/plane/security/advisories/GHSA-hhj8-7hv6-m74r 134c704f-9b21-4f2e-91b3-4a467353bcc0