PT-2024-10801 · Useragent · Useragent

Erik Krogh Kristensen · CVE-2020-26311 · Published 2024-10-26 · Updated 2024-10-30

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/U:Green

Name of the Vulnerable Software and Affected Versions Useragent versions prior to a fixed version (no fixed version specified)

Description The issue concerns a Regular Expression Denial of Service (ReDoS) vulnerability in the Useragent user agent parser for Node.js. This vulnerability affects all versions as of the time of publication. There is no information provided about the estimated number of potentially affected devices worldwide or real-world incidents where this issue was exploited.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Weakness Enumeration

CWE-1333

Related Identifiers

CVE-2020-26311

GHSA-MGFV-M47X-4WQP

Affected Products

Useragent

References · 9

• 🔥 https://securitylab.github.com/advisories/GHSL-2020-312-redos-useragent · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-26311 · Security Note
• https://osv.dev/vulnerability/CVE-2020-26311 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-mgfv-m47x-4wqp · Vendor Advisory
• https://github.com/3rd-Eden/useragent/issues/167 · Note
• https://github.com/3rd-Eden/useragent · Note
• https://github.com/3rd-Eden/useragent/commit/4c3ee79358bea72d88fe78ac98f4f861db40b89b · Note
• https://github.com/3rd-Eden/useragent/blob/ffa906f923183c85fbb9e6c90f19345e2bd3c52a/lib/regexps.js#L5568 · Note
• https://t.me/cvedetector/9038 · Telegram Post