# CVE-2026-83305: Missing authorization in Oracle BI Publisher

> Unauthenticated attackers can access, modify, or disrupt Oracle BI Publisher data via HTTP due to missing authorization checks.

- **Severity:** High 8.6 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Sep 2026
- **Updated:** 22 Sep 2026
- **Also known as:** GHSA-w3x5-mxvq-293h

## What is CVE-2026-83305?

CVE-2026-83305 is a high-severity missing authorization vulnerability in Oracle BI Publisher, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Vulnerability in the Oracle BI Publisher product of Oracle Analytics (component: BI Platform Security).  Supported versions that are affected are 8.2.0.0.0, 12.2.1.4.0 and  26.01.0.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle BI Publisher.  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all Oracle BI Publisher accessible data as well as  unauthorized update, insert or delete access to some of Oracle BI Publisher accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle BI Publisher. CVSS 3.1 Base Score 8.6 (Confidentiality, Integrity and Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L).

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2026-83305?


## How do I fix CVE-2026-83305?

No fix has been published for CVE-2026-83305 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-83305 being exploited?

There is no known exploitation of CVE-2026-83305 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-83305 and fix it if it is affected.

What it is: CVE-2026-83305 is a high-severity missing authorization vulnerability in Oracle BI Publisher, published on 15 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-2026-83305 in the wild and no public exploit code.

Affected product: Oracle BI Publisher. 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-2026-83305/ (Markdown: https://insights.sbomify.com/CVE-2026-83305/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-83305
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-83305
- OSV: https://osv.dev/vulnerability/CVE-2026-83305

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-83305/
Summaries are generated and may contain mistakes; the official description above is the record.