# CVE-2026-35610: PolarLearn has a Server Action Admin Bypass in Account Management Actions

> Authenticated non-admin users can bypass admin checks to change passwords or delete accounts in PolarLearn due to an inverted condition.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Apr 2026
- **Updated:** 7 Apr 2026

## What is CVE-2026-35610?

CVE-2026-35610 is a high-severity vulnerability in polarnl PolarLearn, published on 7 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

PolarLearn is a free and open-source learning program. In 0-PRERELEASE-14 and earlier, setCustomPassword(userId, password) and deleteUser(userId)  in the account-management module used an inverted admin check. Because of the inverted condition, authenticated non-admin users were allowed to execute both actions, while real admins were rejected. This is a direct privilege-escalation issue in the application.

Weakness: CWE-285 (Improper Authorization)

## Which versions are affected by CVE-2026-35610?

It affects 1 product.


Products: Polarlearn Polarlearn.

## How do I fix CVE-2026-35610?

No fix has been published for CVE-2026-35610 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-35610 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35610 exists.

## Other vulnerabilities in polarnl PolarLearn

- [CVE-2026-25885](https://insights.sbomify.com/CVE-2026-25885/): PolarLearn allows Unauthenticated WebSocket access allows subscribing to and posting in arbitrary group chats (critical 10.0)
- [CVE-2026-39322](https://insights.sbomify.com/CVE-2026-39322/): PolarLearn: Any password authenticates banned accounts and grants API access (critical 9.2)
- [CVE-2026-25126](https://insights.sbomify.com/CVE-2026-25126/): PolarLearn's unvalidated vote direction allows vote count manipulation (high 7.1)
- [CVE-2026-25222](https://insights.sbomify.com/CVE-2026-25222/): PolarLearn Affected by User Enumeration via Argon2 Timing Attack on Sign-In Endpoint (medium 6.3)
- [CVE-2026-25221](https://insights.sbomify.com/CVE-2026-25221/): PolarLearn has Multiple Login CSRFs via Missing OAuth state Parameter (GitHub & Google) (low 2.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-35610 and fix it if it is affected.

What it is: CVE-2026-35610 is a high-severity vulnerability in polarnl PolarLearn, published on 7 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35610 exists.

Affected product: polarnl PolarLearn. 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-2026-35610/ (Markdown: https://insights.sbomify.com/CVE-2026-35610/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-35610
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-35610
- OSV: https://osv.dev/vulnerability/CVE-2026-35610

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-35610/
Summaries are generated and may contain mistakes; the official description above is the record.