# CVE-2026-120806: Authorization role-graph corruption via no-op cleanup filters in dropAllRolesFromDatabase

Status: published. Published: 2026-11-10. Updated: 2026-11-13.

A flaw in MongoDB Server's user management commands may lead to incomplete cleanup of role authorization data when roles are dropped from a database. Due to incorrect internal query predicates, the drop operation removes role definitions but fails to remove stale references in user and role documents. If a role with the same name is subsequently recreated with different privileges, previously associated users may silently inherit the new role's privileges without an explicit grant or corresponding audit event. Exploitation requires authenticated access with database administrative privileges on the target database.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- MongoDB / MongoDB Server: ≥ 9.0.0; < 9.0.7 (affected, semver); ≥ 8.3.0; < 8.3.16 (affected, semver); ≥ 8.0.0; < 8.0.37 (affected, semver); ≥ 7.0.0; < 7.0.48 (affected, semver). Source: CNA: mongodb

## Severity and prioritization

- CVSS 4.0: 7 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N; source: CNA: mongodb

- CVSS 3.1: 5.5 (medium); CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N; source: CNA: mongodb

- CVSS 4.0: 7 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X; source: NVD: cna@mongodb.com

- CVSS 3.1: 5.5 (medium); CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N; source: NVD: cna@mongodb.com

- CISA KEV: No listing in collected sources

- EPSS: 0.24% as of 2026-11-13; percentile 15.90%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-459

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://jira.mongodb.org/browse/SERVER-130261 (CNA: mongodb)

- https://jira.mongodb.org/browse/SERVER-130261 (cna@mongodb.com)

## Provenance

- CNA: mongodb: https://www.cve.org/CVERecord?id=CVE-2026-120806; retrieved 2026-11-13; source updated 2026-11-13

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-120806; retrieved 2026-11-11; source updated 2026-11-10

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-120806; retrieved 2026-11-13; source updated Not reported

Revision: 044cbb7a324ec9f633ef6483c2ff0b21ae3d2c69afa27f74879d29269b5858ca

Canonical: https://y2.dev/cve/CVE-2026-120806

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