index.js in brace-expansion before 1.1.7 is vulnerable to Regular Expression Denial of…
Priority LOW 38CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 4 fixed, 4 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-1333.
Summary
index.js in brace-expansion before 1.1.7 is vulnerable to Regular Expression Denial of Service (ReDoS) attacks, as demonstrated by an expand argument containing many comma characters.
Why it matters now
EPSS 0.0258 85th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Partial brace-expansion (npm): 1.1.7Red Hat: 1 advisoryRed Hat: 4 fixed, 4 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | brace-expansion (npm) | before 1.1.7 | 1.1.7 | Patch available | GHSA-832h-xg76-4gv6 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- brace-expansion (npm) Vendor— Affected before 1.1.7 Fixed in 1.1.7 Patch available GHSA-832h-xg76-4gv6
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:brace_expansion_project:brace_expansion:*:*:*:*:*:*:*:* | before 1.1.7 | Vulnerable | Brace Expansion Project |
- cpe:2.3:a:brace_expansion_project:brace_expansion:*:*:*:*:*:*:*:* Versions before 1.1.7 Vulnerable ·Brace Expansion Project
Remediation
- Fix · GHSA-832h-xg76-4gv6 brace-expansion (npm) Fixed in 1.1.7 Advisory →
Red Hat 1 advisory
- RHSA-2020:2625 Released 2020-06-19 · Red Hat rating Moderaterh-nodejs8-nodejs security update
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-nodejs8-nodejs-8.17.0-2.el7, rh-nodejs8-nodejs-devel-8.17.0-2.el7, rh-nodejs8-nodejs-docs-8.17.0-2.el7 +1
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-nodejs8-nodejs-8.17.0-2.el7, rh-nodejs8-nodejs-devel-8.17.0-2.el7, rh-nodejs8-nodejs-docs-8.17.0-2.el7 +1
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) rh-nodejs8-nodejs-8.17.0-2.el7, rh-nodejs8-nodejs-devel-8.17.0-2.el7, rh-nodejs8-nodejs-docs-8.17.0-2.el7 +1
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-nodejs8-nodejs-8.17.0-2.el7, rh-nodejs8-nodejs-devel-8.17.0-2.el7, rh-nodejs8-nodejs-docs-8.17.0-2.el7 +1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Mobile Application Platform 4 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Enterprise 3 | Affected | No fix planned: Will not fix |
| Red Hat Quay 3 | Affected | No fix yet: Fix deferred |
| Red Hat Software Collections | Affected | No fix yet |
| Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2020:2625 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) | Fixed | RHSA-2020:2625 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) | Fixed | RHSA-2020:2625 |
| Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2020:2625 |
Timeline
- 2026-10-02 Threatist record created from CVE-2017-18077
- 2026-10-03 Alias added: GHSA-832h-xg76-4gv6
References
Exploit 2
Advisory 3
Sources
- CVE-2017-18077 · CVE Program
- CVE-2017-18077 · NVD
- FIRST EPSS
- GHSA-832h-xg76-4gv6 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-18077 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences