Vulnerability · Published Sep 24, 2026 · Assigned by mitre
CVE-2026-90481
Critical 9.2
In plain English
A critical-severity authentication bypass in Burp Suite DAST from PortSwigger. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).
Severity (CVSS 4.0)9.2Critical
Exploit odds (30 days)0.3%top 73.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| PortSwigger | Burp Suite DAST | 2021.11 – before 2026.8 |
Weakness: CWE-288 · Vector: 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
References
- https://portswigger.net/burp/releases/dast-2026-8 release-notes