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CVE-2019-2386

Authorization session conflation

Description

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.

Timeline

  1. ID reserved

    By mongodb

  2. · 8 months later

    Published

  3. · 5 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2019-2386, by who scored it
Scored byCVSSScoreVector
mongodbCNA (assigner)3.1High7.1CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
NVDNVD · Modified3.1High7.1CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
1.1% · top 33% of all CVEs (11 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.

Affected products

What to do

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

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

References

References2

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .