Plane is an open-source project management tool. Prior to 1.4.0, DuplicateAssetEndpoint fetches a source FileAsset without limiting it to the caller's workspace, allowing cross-workspace asset duplication. WorkspaceFileAssetEndpoint and the legacy FileAssetEndpoint omit workspace authorization, allowing authenticated users to read, create, modify, or delete assets in workspaces where they are not members. Separately, WorkspaceViewViewSet.retrieve lacks the authorization decorator used by its sibling actions, exposing an unauthorized workspace-view read surface. This issue is fixed in 1.4.0.
CVE-2026-104971
HIGHPre-NVD 8.58.5Elevated
EchelonGraph scoreLOW confidence
This high-severity CVE scores 8.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: secondary
8.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 8.5Exploit: Elevated riskExposed services: Not assessed
A fix is available — apply it.
- CVSS v3
- 8.5
- EG Score
- 8.5HIGHlow confidence
- EG Risk
- 38EG Risk 38/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity85% × 45%Exploitation0% × 40%Automatability0% × 15%CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
October 5, 2026
Last Modified
October 5, 2026
Advisory Details (6)
Auto-updated Oct 5, 2026🔬 Proof of concept available. Patch available. Sources: github_release, github, github_pr, github_commit.
github_release Patch Available
v1.4.0
Patch available: makeplane/plane v1.4.0
https://github.com/makeplane/plane/releases/tag/v1.4.0github_commit
commit ac11c3ef7939 (makeplane/plane)
Fix landed in makeplane/plane commit ac11c3ef7939 — awaiting tagged release
https://github.com/makeplane/plane/commit/ac11c3ef7939e31201fa92a17de106906025590fgithub_commit
commit 4577dc3f7a6b (makeplane/plane)
Fix landed in makeplane/plane commit 4577dc3f7a6b — awaiting tagged release
https://github.com/makeplane/plane/commit/4577dc3f7a6b5a198602b602a45c6b0abdc7204bgithub_pr
[WEB-7776] fix(security): scope FileAsset queries to prevent cross-project IDOR (Cluster F)
Fix merged in makeplane/plane PR #9288 on 2026-06-30 — awaiting tagged release
https://github.com/makeplane/plane/pull/9288github_pr
fix: enforce workspace membership on V2 asset endpoints
Fix merged in makeplane/plane PR #8885 on 2026-04-20 — awaiting tagged release
https://github.com/makeplane/plane/pull/8885githubMentions a patch (unverified)🟡 PoC Available
Cross-Workspace Asset Duplication IDOR + WorkspaceFileAssetEndpoint and FileAssetEndpoint Missing Authorization · Advisory · makeplane/plane · GitHub
https://github.com/makeplane/plane/security/advisories/GHSA-p57q-8hh8-7fc7Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 5× in last 7d / 5× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-10-05 19:24 UTCEG score recompute
- 2026-10-05 18:51 UTCEG score recompute
- 2026-10-05 18:23 UTCEG score recompute
- 2026-10-05 17:21 UTCEG score recompute
- 2026-10-05 17:21 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(4)
What is CVE-2026-104971?
CVE-2026-104971 is a high vulnerability published on October 5, 2026. Plane is an open-source project management tool. Prior to 1.4.0, DuplicateAssetEndpoint fetches a source FileAsset without limiting it to the caller's workspace, allowing cross-workspace asset duplication. WorkspaceFileAssetEndpoint and the legacy FileAssetEndpoint omit workspace authorization,…
When was CVE-2026-104971 disclosed?
CVE-2026-104971 was first published on October 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-104971?
CVE-2026-104971 has a CVSS base score of 8.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-104971?
A fix for CVE-2026-104971 is available: update to the fixed version the vendor names in its advisory.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-104971
Is Your Infrastructure Affected by CVE-2026-104971?
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