The aaugustin websockets library before 9.1 for Python has an Observable Timing…
Priority LOW 31CWE-203Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-203.
Summary
The aaugustin websockets library before 9.1 for Python has an Observable Timing Discrepancy on servers when HTTP Basic Authentication is enabled with basic_auth_protocol_factory(credentials=...). An attacker may be able to guess a password via a timing attack.
Why it matters now
EPSS 0.02265 83rd percentileScored 2026-11-07
Fix Fixed websockets (PyPI): 9.1
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | websockets (PyPI) | before 9.1 | 9.1 | Patch available | GHSA-8ch4-58qp-g3mp |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- websockets (PyPI) Vendor— Affected before 9.1 Fixed in 9.1 Patch available GHSA-8ch4-58qp-g3mp
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:websockets_project:websockets:*:*:*:*:*:python:*:* | before 9.1 | Vulnerable | Websockets Project |
| cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.14.0:*:*:*:*:*:*:* | 1.14.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:communications_cloud_native_core_security_edge_protection_proxy:1.5.0:*:*:*:*:*:*:* | 1.5.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:communications_cloud_native_core_service_communication_proxy:1.14.0:*:*:*:*:*:*:* | 1.14.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:communications_cloud_native_core_unified_data_repository:1.14.0:*:*:*:*:*:*:* | 1.14.0 | Vulnerable | Oracle |
- cpe:2.3:a:websockets_project:websockets:*:*:*:*:*:python:*:* Versions before 9.1 Vulnerable ·Websockets Project
- cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.14.0:*:*:*:*:*:*:* Versions 1.14.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:communications_cloud_native_core_security_edge_protection_proxy:1.5.0:*:*:*:*:*:*:* Versions 1.5.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:communications_cloud_native_core_service_communication_proxy:1.14.0:*:*:*:*:*:*:* Versions 1.14.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:communications_cloud_native_core_unified_data_repository:1.14.0:*:*:*:*:*:*:* Versions 1.14.0 Vulnerable ·Oracle
Remediation
- Fix · GHSA-8ch4-58qp-g3mp websockets (PyPI) Fixed in 9.1 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2021-33880
- 2026-10-03 Alias added: GHSA-8ch4-58qp-g3mp
References
Patch 3
Sources
- CVE-2021-33880 · CVE Program
- CVE-2021-33880 · NVD
- FIRST EPSS
- GHSA-8ch4-58qp-g3mp · GitHub Advisory Database · CC BY 4.0
- CVE-2021-33880 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences