CVE-2026-57443
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.74%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.74% probability · 54th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-306
- Source
- security-advisories@github.com
EPSS moved from 0.6% on 26 September 2026 to 0.7% on 26 October 2026.
References
- https://github.com/issdandavis/SCBE-AETHERMOORE/commit/ca833795e01eab060e92572e5f667c0c136b8c1e
- https://github.com/issdandavis/SCBE-AETHERMOORE/commit/de7779b722c501dbcf4eae95dd51bb3984506fb1
- https://github.com/issdandavis/SCBE-AETHERMOORE/security/advisories/GHSA-q986-4x7x-gx39
- https://github.com/issdandavis/SCBE-AETHERMOORE/security/advisories/GHSA-q986-4x7x-gx39
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.