brace-expansion: DoS via uncontrolled recursion on nested brace groups causing stack exhaustion
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 5.0.11, 3.0.8, 2.1.6, 1.1.20
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- juliangruber brace-expansion
From 4.0.0 · fixed in 5.0.11; From 3.0.0 · fixed in 3.0.8; From 2.0.0 · fixed in 2.1.6; fixed in 1.1.20
- brace-expansionnpm
From 4.0.0 · fixed in 5.0.11
- brace-expansionnpm
From 3.0.0 · fixed in 3.0.8
- brace-expansionnpm
From 2.0.0 · fixed in 2.1.6
- brace-expansionnpm
fixed in 1.1.20