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CVE-2018-1109

20
FAUCET Score

CVE-2018-1109 describes a Regular Expression Denial of Service (ReDoS) vulnerability affecting Braces versions 2.2.0 and above, prior to 2.3.1. This flaw allows an attacker to cause a denial of service by providing specially crafted input to the vulnerable software. Rated Medium severity (CVSS 5.3), the attack requires no user interaction or privileges, but its impact is limited to availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.3.1CPE matchmatch criteria
cpe:2.3:a:braces_project:braces:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.36%
Probability of exploitation in next 30 days
EPSS Percentile
68.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0136 is in the 50th percentile among its peer group of 23,684 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (3)

npmpatch availablevia ghsa
Product: bracesFixed in: 2.3.1
redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Quay 3Fixed in: quay/quay-rhel8:v3.6.0-62
View patch

Vendor Advisories (2)

npmGHSA-cwfw-4gq5-mrqxlow

Regular Expression Denial of Service (ReDoS) in braces

Jan 6, 2022
redhatCVE-2018-1109Low

nodejs-braces: Regular Expression Denial of Service (ReDoS) in lib/parsers.js

Feb 19, 2018

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
snyk.io / vuln/npm:braces:20180219
ExploitThird Party Advisory