# CVE-2026-85292: InvoicePlane: Loose Type Comparison in Core Authentication Check (Defense-in-Depth)

> Attackers can bypass authentication checks via type juggling in non-standard session configurations, allowing unauthorized access to privileged functions.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Sep 2026
- **Updated:** 25 Sep 2026
- **Also known as:** GHSA-346c-gqqq-mrm2

## What is CVE-2026-85292?

CVE-2026-85292 is a medium-severity authentication bypass vulnerability in InvoicePlane, published on 25 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. Prior to 1.7.2, InvoicePlane's User_Controller compares the session user_type value with the required role by using PHP's loose inequality operator. Under a non-standard session backend that returns unexpected scalar types, type juggling can cause a value that is not strictly the required role to pass the authorization check. This can permit authentication or authorization bypass in affected session configurations. This issue is fixed in version 1.7.2.

Weakness: CWE-697 (Incorrect Comparison)

## Which versions are affected by CVE-2026-85292?


## How do I fix CVE-2026-85292?

No fix has been published for CVE-2026-85292 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-85292 being exploited?

There is no known exploitation of CVE-2026-85292 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-85292 and fix it if it is affected.

What it is: CVE-2026-85292 is a medium-severity authentication bypass vulnerability in InvoicePlane, published on 25 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-2026-85292 in the wild and no public exploit code.

Affected product: InvoicePlane. 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-2026-85292/ (Markdown: https://insights.sbomify.com/CVE-2026-85292/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-85292
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-85292
- OSV: https://osv.dev/vulnerability/CVE-2026-85292

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-85292/
Summaries are generated and may contain mistakes; the official description above is the record.