# CVE-2026-57443: SCBE-AETHERMOORE Unauthenticated AetherBrowser Ops API Exposes Operator Email Digests

> Unauthenticated remote attackers can access operator email digests via an exposed API endpoint in the AetherBrowser Ops server.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 25 Sep 2026
- **Updated:** 29 Sep 2026
- **Also known as:** GHSA-q986-4x7x-gx39, PYSEC-2026-4163

## What is CVE-2026-57443?

CVE-2026-57443 is a high-severity missing authorization vulnerability in issdandavis SCBE-AETHERMOORE, published on 25 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

SCBE-AETHERMOORE is a geometric AI governance and evaluation framework. Starting in version 4.0.2 and prior to version 4.2.1, the AetherBrowser API server (`scripts/aetherbrowser/api_server.py`) exposes the `POST /api/ops/check-email` endpoint without any authentication. Any remote attacker can call this endpoint and trigger execution of the `email_reader.py` subprocess, which connects to configured ProtonMail or Gmail accounts via IMAP and returns email metadata (sender, subject, body snippet) in the JSON response. The server binds to `0.0.0.0:8100` by default with CORS set to `allow_origins=["*"]`, making it reachable from any network or browser origin. Version 4.2.1 patches the issue.

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

## Which versions are affected by CVE-2026-57443?

3 open source packages ship an affected version, including scbe-aethermoore.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `scbe-aethermoore` | PyPI | From 4.0.2 | 4.2.1 |
| `scbe-aethermoore` | PyPI | From 4.0.2 | 4.2.1 |
| `scbe-aethermoore` | PyPI | From 4.0.2 | 4.2.1 |

## How do I fix CVE-2026-57443?

Upgrade scbe-aethermoore to 4.2.1 or later.

## Is CVE-2026-57443 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-57443 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-57443 and fix it if it is affected.

What it is: CVE-2026-57443 is a high-severity missing authorization vulnerability in issdandavis SCBE-AETHERMOORE, published on 25 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-57443 exists.

Affected packages and fixed versions:
- scbe-aethermoore (PyPI): affected from 4.0.2; fixed in 4.2.1
- scbe-aethermoore (PyPI): affected from 4.0.2; fixed in 4.2.1
- scbe-aethermoore (PyPI): affected from 4.0.2; fixed in 4.2.1

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-2026-57443/ (Markdown: https://insights.sbomify.com/CVE-2026-57443/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-57443
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-57443
- OSV: https://osv.dev/vulnerability/CVE-2026-57443

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-57443/
Summaries are generated and may contain mistakes; the official description above is the record.