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VulnerabilityPublished

CVE-2026-120816: MongoDB Server · Incorrect Authorization

Affects MongoDB ServerSource CVE Database V5

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Not known to be exploited · CVSS 2.3 Low · fixed in 9.0.7 : update MongoDB Server when convenient.

Data as of 10 Nov 2026, 20:36 UTC

CVSS 4.0 base score
2.3Low
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (mongodb)CVSS 4.02.3
CNA (mongodb)CVSS 3.14.3
Patch
Available – fixed in 9.0.7, 8.3.16, 8.0.37 +1
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

What to do

Upgrade MongoDB Server to 9.0.7, 8.3.16, 8.0.37 or 7.0.48.

Affected software

ProductAffectedFixed in
MongoDBMongoDB ServerAffected
  • >=9.0.0 <9.0.7
Fixed in
  • 9.0.7
MongoDBMongoDB ServerAffected
  • >=8.3.0 <8.3.16
Fixed in
  • 8.3.16
MongoDBMongoDB ServerAffected
  • >=8.0.0 <8.0.37
Fixed in
  • 8.0.37
MongoDBMongoDB ServerAffected
  • >=7.0.0 <7.0.48
Fixed in
  • 7.0.48

AI-suggested

Upgrade MongoDB Server to one of the fixed versions: 7.0.48, 8.0.37, 8.3.16, or 9.0.7. These versions contain the official fix for this authorization bypass vulnerability. No other mitigation is indicated or required.

Description

CVE-2026-120816 is an authorization vulnerability in MongoDB Server where users with basic read-tier privileges can exploit a server-side data-change notification feature to access contents of certain restricted internal collections. The privilege check for this feature only considers the target namespace and ignores additional options that allow access to otherwise restricted data. This flaw affects multiple MongoDB Server versions prior to fixed releases.

References

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