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Fencer Intel
high 7.1

CVE-2019-2386 json

Authorization session conflation

published 7y ago modified 4mo ago also EUVD-2019-12028

cvss
7.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

After user deletion in MongoDB Server the improper invalidation of authorization sessions allows an authenticated user's session to persist and become conflated with new accounts, if those accounts reuse the names of deleted ones. This issue affects MongoDB Server v4.0 versions prior to 4.0.9; MongoDB Server v3.6 versions prior to 3.6.13 and MongoDB Server v3.4 versions prior to 3.4.22.

Workaround: After deleting one or more users, restart any nodes which may have had active user authorization sessions.

Refrain from creating user accounts with the same name as previously deleted accounts.

Patch / fix

  • MongoDB Inc. MongoDB Server 3.4.22, 3.6.13, 4.0.9
  • mongodb Ubuntu 18.04 LTS 1:3.6.3-0ubuntu1.3
  • mongodb Ubuntu 20.04 LTS 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.2

ubuntu advisories UBUNTU-CVE-2019-2386

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-2386 updated cvss 7.1

mongodb: Improper invalidation of authorization sessions for deleted users

  • Red Hat OpenStack Platform 10 (Newton) mongodb, mongodb-server Red Hat Software Collections rh-mongodb34-mongodb, rh-mongodb36-mongodb, rh-mongodb34-mongodb-test, rh-mongodb36-mongodb-test, rh-mongodb34-mongodb-server, rh-mongodb36-mongodb-server, +4 more Red Hat Update Infrastructure 3 for Cloud Providers mongodb
    affected: workaround, no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.14% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • talosintelligence.com https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0829 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 7.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.0 AV:N/AC:M/Au:S/C:P/I:P/A:P

Affected products

  • MongoDB Inc. MongoDB Server

Classification

Weakness
  • CWE-285 Improper Authorization
  • CWE-613 DEPRECATED: Insufficient Session Expiration
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.