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CVE-2026-120819VulnerabilityPublished

Memory-management Flaw

Source GCVE Database

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Authoritative record:CVE-2026-120819· Medium 5.3

Not known to be exploited · CVSS 5.3 Medium : upgrade to 9.0.7 when convenient.

Data as of 10 Nov 2026, 22:37 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (mongodb)CVSS 4.05.3
CNA (mongodb)CVSS 3.14.3
Patch
Available – fixed in 9.0.7
CVSS:4.0/AV:N/AC:L/AT:N/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.

Affected software

ProductAffectedFixed in
MongoDBMongoDB ServerAffected
  • >=9.0.0 <9.0.7
Fixed in
  • 9.0.7

Description

A memory-management flaw in MongoDB Server's server-side JavaScript execution component allows an authenticated user with read-only privileges to access memory that has already been freed. By submitting a specially crafted command running user-supplied JavaScript, the user can retrieve a limited amount of adjacent process memory, potentially exposing unauthorized information. This vulnerability does not impact data integrity or server availability.

References

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