CVE-2019-20922GHSA-62GR-4QP9-H98FSNYK-JS-HANDLEBARS-480388
Handlebars before 4.4.5 allows Regular Expression Denial of Service (ReDoS) because of eager matching.
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 4.4.5
- 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
Summary
Handlebars before 4.4.5 allows Regular Expression Denial of Service (ReDoS) because of eager matching. The parser may be forced into an endless loop while processing crafted templates. This may allow attackers to exhaust system resources.
Timeline
- CVE published
- Record last updated
Affected versions
- n/a n/a
Version range not reported
- handlebarsnpm
From 4.0.0 · fixed in 4.4.5