# CVE-2026-77525: MaxKB: Management chat-record routes trust path application_id but load ChatRecord by global chat_id

> Attackers can read and modify victim chat records by exploiting missing authorization checks on chat IDs in MaxKB management routes.

- **Severity:** Medium 4.2 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N`)
- **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:** 21 Sep 2026
- **Updated:** 24 Sep 2026

## What is CVE-2026-77525?

CVE-2026-77525 is a medium-severity missing authorization vulnerability in 1Panel-dev MaxKB, published on 21 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

MaxKB is an open-source AI assistant for enterprise. In 2.10.2-lts and earlier, management chat-record routes authorize the path application_id but load records using global chat_id and chat_record_id values without confirming that the chat belongs to the authorized application. A normal user in the same workspace who knows the chat_id of a persisted non-debug record for a victim's published application can place it under a separate attacker-owned application path to read victim chat records. An attacker with an owned knowledge base and document can also use add_knowledge to copy victim answers while updating the victim record's improve_paragraph_id_list. No fixed version is available as of this review.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-77525?


## How do I fix CVE-2026-77525?

No fix has been published for CVE-2026-77525 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-77525 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-77525 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-77525 and fix it if it is affected.

What it is: CVE-2026-77525 is a medium-severity missing authorization vulnerability in 1Panel-dev MaxKB, published on 21 Sep 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-2026-77525 exists.

Affected product: 1Panel-dev MaxKB. 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-2026-77525/ (Markdown: https://insights.sbomify.com/CVE-2026-77525/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-77525
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-77525
- OSV: https://osv.dev/vulnerability/CVE-2026-77525

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-77525/
Summaries are generated and may contain mistakes; the official description above is the record.