CVE-2019-20922
HIGH
7.5
CVSS Score
Published: September 30, 2020 at 12:30 PM UTC
Updated: June 17, 2026 at 02:31 AM UTC
1 product affected across 1 vendorHandlebars
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Severity
HIGH7.5
Exploit prediction
EPSS 4%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
95%
4.0.0 ≤ v < 4.4.5
Affected range stops below 4.4.5, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/handlebars-lang/handlebars.js/commit/8d5530ee2c3ea9f0aee3fde310b9f36887d00b8bx_refsource_MISCThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JS-HANDLEBARS-480388CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-400
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