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CVE-2019-17426

28
FAUCET Score

CVE-2019-17426 describes a critical access control bypass vulnerability in Automattic Mongoose versions through 5.7.4. This flaw allows attackers to interfere with query filters by injecting a "_bsontype" attribute, affecting applications utilizing Mongoose. With a CVSS score of 9.1 (CRITICAL), this vulnerability is remotely exploitable with low complexity, potentially leading to high impact on confidentiality and integrity. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.7.4CPE matchmatch criteria
cpe:2.3:a:mongoosejs:mongoose:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.66%
Probability of exploitation in next 30 days
EPSS Percentile
74.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0166 is in the 62nd percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: mongooseFixed in: 5.7.5
npmpatch availablevia ghsa
Product: mongooseFixed in: 4.13.21

Vendor Advisories (1)

npmGHSA-8687-vv9j-hgphcritical

Improper Input Validation in Automattic Mongoose

Oct 22, 2019

References

github.com / Automattic/mongoose/commit/f3eca5b94d822225c04e96cbeed9f095afb3c31c
Patch
github.com / Automattic/mongoose/issues/8222
Third Party Advisory