PT-2023-12838 · Unknown+2 · Ua-Parser-Js+2

Beau Harder · Published 2023-01-24 · Updated 2026-02-17 · CVE-2022-25927

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions ua-parser-js versions 0.7.30 through 0.7.32 ua-parser-js versions 0.8.1 through 1.0.32

Description A regular expression denial of service (ReDoS) issue has been discovered in ua-parser-js, allowing an attacker to craft a long user-agent string with a specific pattern, causing the script to get stuck processing for a long time and resulting in a denial of service (DoS) condition. This vulnerability bypasses the library's MAX LENGTH input limit prevention.

Recommendations For ua-parser-js versions 0.7.30 through 0.7.32, update to version 0.7.33 or later. For ua-parser-js versions 0.8.1 through 1.0.32, update to version 1.0.33 or later. As a temporary workaround, consider restricting the input to the trim() function to prevent exploitation until a patch is applied.

Exploit

Fix

DoS

Resource Exhaustion

Weakness Enumeration

CWE-1333

CWE-400

Related Identifiers

CVE-2022-25927

GHSA-FHG7-M89Q-25R3

Affected Products

Confluence

Debian

Ua-Parser-Js

References · 16

• 🔥 https://security.snyk.io/vuln/SNYK-JS-UAPARSERJS-3244450 · Exploit
• https://github.com/faisalman/ua-parser-js/commit/a6140a17dd0300a35cfc9cff999545f267889411 · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-25927 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-25927 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-25927 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-25927 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-25927 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-25927 · Security Note
• https://osv.dev/vulnerability/GHSA-fhg7-m89q-25r3 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-25927 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-25927 · Vendor Advisory
• https://github.com/faisalman/ua-parser-js · Note
• https://github.com/faisalman/ua-parser-js/security/advisories/GHSA-fhg7-m89q-25r3 · Note
• https://t.me/cvenotify/117253 · Telegram Post
• https://jira.atlassian.com/browse/CONFSERVER-102186 · Note