CVE-2019-20922

Aliases:GHSA-62gr-4qp9-h98f
Advisory lineage Upstream: 0 Downstream: 2
Modified
Published: 30 Sept 2020, 12:30
Last modified:05 Aug 2024, 03:00

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
v2.0 (nvd)
EPSS Score
0.29% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

30 Sept 2020, 12:30
Published
Vulnerability first disclosed
05 Aug 2024, 03:00
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • v2.0•HIGH•Score: 7.8AV:N/AC:L/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 0.29%• Percentile: 53%

Techniques & Countermeasures

  • CWE-400•Uncontrolled Resource Consumption

    The product does not properly control the allocation and maintenance of a limited resource.

Affected Systems

  • handlebarsjs•handlebars

    ≥ 4.0.0, < 4.4.5

  • Npm•handlebars

    ≥ 4.0.0, < 4.4.5

References (5)