Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.90.0 and canary versions before 4.0.0-canary.34, the duplicate operation copies values from a source document even when a field is hidden or its access.read or access.create rule rejects that value for the caller. The disableDuplicate setting does not prevent this access-control bypass. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
CVE-2026-105851
CRITICALPre-NVD 9.39.3
EchelonGraph scoreLOW confidence
This critical-severity CVE scores 9.3 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
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 9.3Exploit: None knownExposed services: Not assessed
A fix is available — apply it.
- CVSS v3
- 9.3
- EG Score
- 9.3CRITICALlow confidence
- EG Risk
- 57EG Risk 57/100CISA 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 computedSeverity93% × 45%Exploitation0% × 40%Automatability100% × 15%CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (CISA Vulnrichment) · Automatable yes (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 6, 2026
Last Modified
October 6, 2026
Advisory Details (3)
Auto-updated Oct 7, 2026Patch available. Sources: github_commit, github_release, github.
githubMentions a patch (unverified)
Field access control bypass on auth collections · Advisory · payloadcms/payload · GitHub
https://github.com/payloadcms/payload/security/advisories/GHSA-vc4h-q48j-5hcxgithub_release Patch Available
v3.90.0
Patch available: payloadcms/payload v3.90.0
https://github.com/payloadcms/payload/releases/tag/v3.90.0github_commit Patch Available
commit 099ef12e2682 (payloadcms/payload)
Patch available: payloadcms/payload v3.90.0 (contains commit 099ef12e2682)
https://github.com/payloadcms/payload/commit/099ef12e2682f076aa8e8d0ccb790536b4e1027fVendor Advisories for CVE-2026-105851(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness 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.
- 2026-10-06 18:32 UTCEG score recompute
- 2026-10-06 17:47 UTCEG score recompute
- 2026-10-06 17:19 UTCEG score recompute▲ 9.30
- 2026-10-06 17:19 UTCNVD updateCVSS v3 → 9.3 · CVSS v4 → 9.3
- 2026-10-06 16:19 UTCEG score recompute
Related CVEs(same CWE)
Same CWE
10 shownCWE-284 · CWE-863
Frequently asked(4)
What is CVE-2026-105851?
CVE-2026-105851 is a critical vulnerability published on October 6, 2026. Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.90.0 and canary versions before 4.0.0-canary.34, the duplicate operation copies values from a source document even when a field is hidden or its access.read or access.create rule rejects that value…
When was CVE-2026-105851 disclosed?
CVE-2026-105851 was first published on October 6, 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-2026-105851?
CVE-2026-105851 has a CVSS base score of 9.3 (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-2026-105851?
A fix for CVE-2026-105851 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-105851 are linked in the Vendor Advisories panel on this page.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-105851
Is Your Infrastructure Affected by CVE-2026-105851?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.