CVE-2026-90481 | BDVDB-2026-378699 Detail

PortSwiggerBurp Suite DAST

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.

Impact#

Per CVSS v4.0: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-288 Authentication Bypass Using an Alternate Path or Channel

References#

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

Exploit#

No public exploit known

History#

Version 12026-09-24Record published in the CVE List.

Published

Published: 2026-09-24
Last modified: 2026-09-24

Vendor information

Vendor: PortSwigger
Product: Burp Suite DAST

All PortSwigger vulnerabilities

Score

9.2 Critical

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 26.3.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Authentication Issues

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 2021.11 and < 2026.8
Fixed
2026.8

Scoring System

CVSS v4.0

9.2 Critical

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Attack Requirements	Present
Privileges Required	None
User Interaction	None
Vulnerable System Confidentiality	High
Vulnerable System Integrity	High
Vulnerable System Availability	High
Subsequent System Confidentiality	Low
Subsequent System Integrity	Low
Subsequent System Availability	Low

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).