# CVE-2026-90481: Auth bypass in Burp Suite DAST

> Attackers can bypass authentication in Burp Suite DAST via an alternate path, potentially gaining unauthorized access to the scanning platform.

- **Severity:** Critical 9.2 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Sep 2026
- **Updated:** 24 Sep 2026
- **Also known as:** GHSA-hmv3-x9c8-w9rm

## What is CVE-2026-90481?

CVE-2026-90481 is a critical authentication bypass vulnerability in PortSwigger Burp Suite DAST, published on 24 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### 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.

Weakness: CWE-288 (Authentication Bypass Using an Alternate Path or Channel)

## Which versions are affected by CVE-2026-90481?


## How do I fix CVE-2026-90481?

No fix has been published for CVE-2026-90481 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-90481 being exploited?

There is no known exploitation of CVE-2026-90481 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-90481 and fix it if it is affected.

What it is: CVE-2026-90481 is a critical authentication bypass vulnerability in PortSwigger Burp Suite DAST, published on 24 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-90481 in the wild and no public exploit code.

Affected product: PortSwigger Burp Suite DAST. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-90481/ (Markdown: https://insights.sbomify.com/CVE-2026-90481/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-90481
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-90481
- OSV: https://osv.dev/vulnerability/CVE-2026-90481

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-90481/
Summaries are generated and may contain mistakes; the official description above is the record.