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VulnerabilityPublished

CVE-2026-125120: Mongoose · sanitizeFilter not applied on countDocuments

Affects mongooseSource GCVE Database

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Authoritative record:CVE-2026-125120· Critical 9.8

Not known to be exploited · CVSS 9.8 Critical : upgrade to 6.13.11 as a priority.

Data as of 10 Nov 2026, 20:05 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (GitHub_M)CVSS 3.19.8
Patch
Available – fixed in 6.13.11, 7.8.12, 8.24.3 +1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 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 to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
npmmongooseAffected
  • <6.13.11
Fixed in
  • 6.13.11
npmmongooseAffected
  • >=7.0.0 <7.8.12
Fixed in
  • 7.8.12
npmmongooseAffected
  • >=8.0.0 <8.24.3
Fixed in
  • 8.24.3
npmmongooseAffected
  • >=9.0.0 <9.9.2
Fixed in
  • 9.9.2

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

### Impact `sanitizeFilter` is Mongoose's mechanism for protecting against query selector injection attacks. In older versions of Mongoose, `sanitizeFilter` was not applied for `countDocuments()` queries. ### Patches Patches have been released for all supported Mongoose major release lines. Please upgrade to the following versions depending on which major version of Mongoose applications are using. 1. `^9.9.2` 2. `^8.24.3` 3. `^7.8.12` 4. `^6.13.11` ### Workarounds Middleware: ```javascript mongoose.plugin(function() { schema.pre('countDocuments', function() { // This will always apply `sanitizeFilter` on `countDocuments` mongoose.sanitizeFilter(this.getFilter()); }); }); ```

References

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