CVE-2018-1109: A vulnerability was found in Braces versions 2.2.0 and above, prior to 2.3.1

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MEDIUM 5.3REMOTEUPGRADE

CVE-2018-1109 is a medium-severity flaw (CVSS 5.3) affecting braces. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in Braces versions 2.2.0 and above, prior to 2.3.1. Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) attacks.

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Weakness	CWE-185, CWE-400
Published	2021-03-30
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: braces project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-03-30 02:15 UTCPublished CVE record published
2026-06-17 01:50 UTCUpdated Record last modified

braces project braces UPGRADE

Affected: < 2.3.1

Fixed in: 2.3.1

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls braces

2. UPGRADE to 2.3.1

npm install braces@">=2.3.1"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-1109?

braces: upgrade to 2.3.1. Exact commands for each OS are on this page.

Is CVE-2018-1109 being exploited?

CVE-2018-1109 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-1109 affect?

CVE-2018-1109 affects braces. Severity is medium (CVSS 5.3). A vulnerability was found in Braces versions 2.2.0 and above, prior to 2.3.1. Affected versions of this package are vulnerable to Regular Expression Denial of Service (ReDoS) attacks.

How urgent is CVE-2018-1109?

Priority 47/100. Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-4068 HIGH 7.5 UPGRADE The NPM package `braces`, versions prior to 3.0.3, fails to limit the number of characters it can handle, whic

References

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