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CVE-2026-120805VulnerabilityPublished

In MongoDB Server, an authenticated user with insert privileges on a collection could craft a command with specially

Source GCVE Database

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Authoritative record:CVE-2026-120805· Low 2.3

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

Data as of 11 Nov 2026, 23:24 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
EPSS
0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
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:N/VI:L/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 11 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

If you cannot patch yet, restrict insert privileges carefully and monitor for suspicious activity related to encryption metadata manipulation.

Description

An authenticated MongoDB Server user with insert privileges on a collection can exploit a flaw in the encryption metadata handling to write unauthorized data into other encrypted collections' metadata within the same database. This occurs because the server's authorization checks only validate the user-facing target collection, while internal writes use elevated privileges based on client-supplied parameters. The vulnerability could corrupt encrypted index states and compaction operations.

References

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