CVE-2020-26291

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Summary

CVECVE-2020-26291
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-12-31 00:15:00 UTC
Updated2022-11-29 15:00:00 UTC
DescriptionURI.js is a javascript URL mutation library (npm package urijs). In URI.js before version 1.19.4, the hostname can be spoofed by using a backslash (`\`) character followed by an at (`@`) character. If the hostname is used in security decisions, the decision may be incorrect. Depending on library usage and attacker intent, impacts may include allow/block list bypasses, SSRF attacks, open redirects, or other undesired behavior. For example the URL `https://expected-example.com\@observed-example.com` will incorrectly return `observed-example.com` if using an affected version. Patched versions correctly return `expected-example.com`. Patched versions match the behavior of other parsers which implement the WHATWG URL specification, including web browsers and Node's built-in URL class. Version 1.19.4 is patched against all known payload variants. Version 1.19.3 has a partial patch but is still vulnerable to a payload variant.]

Risk And Classification

Problem Types: CWE-20

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Uri.js Project Uri.js All All All All
Application Urijs Project Urijs All All All All
Application Urijs Project Urijs All All All All

References

ReferenceSourceLinkTags
fix(parse): treat backslash as forwardslash in authority (#403) · medialize/URI.js@b02bf03 · GitHub MISC github.com Patch, Third Party Advisory
Hostname spoofing via backslashes in URL · Advisory · medialize/URI.js · GitHub CONFIRM github.com Third Party Advisory
URIjs MISC www.npmjs.com Third Party Advisory
Release 1.19.4 (December 23rd 2020) · medialize/URI.js · GitHub MISC github.com Release Notes, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 983104 Nodejs (npm) Security Update for urijs (GHSA-3329-pjwv-fjpg)

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