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CVE-2018-13863

23
FAUCET Score

CVE-2018-13863 is a Regular Expression Denial of Service (ReDoS) vulnerability affecting the MongoDB bson JavaScript module (js-bson) versions 0.5.0 through 1.0.4. This flaw is triggered when the Decimal128.fromString() function attempts to parse a long, untrusted string, leading to excessive resource consumption. Rated 7.5 HIGH on CVSS, it is a network-exploitable vulnerability with low attack complexity, requiring no user interaction or privileges, and resulting in high availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.5.0, < 1.0.5CPE matchmatch criteria
cpe:2.3:a:mongodb:js-bson:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.94%
Probability of exploitation in next 30 days
EPSS Percentile
78.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0194 is in the 61st percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: bsonFixed in: 1.0.5
redhatvendor investigatingvia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-nodejs8-nodejs-bson
redhatend of lifevia redhat_api
Product: Red Hat Mobile Application Platform 4Fixed in: nodejs-bson
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-nodejs6-nodejs-bson

Vendor Advisories (2)

npmGHSA-8462-q7x7-g2x4high

js-bson vulnerable to REDoS

Sep 17, 2018
redhatCVE-2018-13863Low

nodejs-bson: Regular expression denial of service in decimal128.js

Feb 27, 2018

References

github.com / mongodb/js-bson/commit/bd61c45157c53a1698ff23770160cf4783e9ea4a
PatchThird Party Advisory
snyk.io / vuln/npm:bson:20180225
ExploitTechnical DescriptionThird Party Advisory