CVE-2021-27292

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

ua-parser-js >= 0.7.14, fixed in 0.7.24, uses a regular expression which is vulnerable to denial of service. If an attacker sends a malicious User-Agent header, ua-parser-js will get stuck processing it for an extended period of time.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected software

No affected versions have been published.

Timeline

Published
Mar 17, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-27292: High severity, CVSS 7.5 | Vulnix