brace-expansion: DoS via uncontrolled recursion on nested brace groups causing stack exhaustion
The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to 1.1.20, 2.1.6, 3.0.8, and 5.0.11, deeply nested brace groups cause expand_() to recurse once per nesting level at comma-member and single-set expansion sites, exhausting the native stack before output limits can apply and potentially terminating the Node.js process. expand_ performs uncontrolled recursion for nested brace alternatives and single-part sets. deeply nested brace groups supplied as an untrusted pattern. expand_ is affected. expand is affected. Comma members is affected. Single set is affected. native stack exhaustion during nested sub-expansion. process-terminating denial of service. This issue is fixed in versions 1.1.20, 2.1.6, 3.0.8, and 5.0.11.
CVE-2026-102278
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-102278
brace-expansion
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "juliangruber",
"product": "brace-expansion",
"versions": [
{
"status": "affected",
"version": ">= 4.0.0, < 5.0.11"
},
{
"status": "affected",
"version": ">= 3.0.0, < 3.0.8"
},
{
"status": "affected",
"version": ">= 2.0.0, < 2.1.6"
},
{
"status": "affected",
"version": "< 1.1.20"
}
]
}
]- Related CVEs
- CVE-2026-102278
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #5297 · Revision 1
- Added to Heist Feed
- Publisher date