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Vulnerability record · CVE-2026-90481 · published 24 September 2026

CVE-2026-90481: Authentication bypass via alternate path vulnerability

In PortSwigger Burp Suite DAST (formerly Burp Suite Enterprise Edition) before 2026.8, an authentication bypass can occur via an alternate path or channel.

9.2 CVSS 4.0 Critical EPSS 0.33% · top 76.5% CWE-288 · Authentication bypass via alternate path Awaiting Analysis
9.2CVSS 4.0 base score
0.33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
24 Sep 2026Last modified by NVD

Description

In PortSwigger Burp Suite DAST (formerly Burp Suite Enterprise Edition) before 2026.8, an authentication bypass can occur via an alternate path or channel.

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://portswigger.net/burp/releases/dast-2026-8

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-90481), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.