Staging Environment: Content and features may be unstable or change without notice.
Search for packages
Package details: pkg:pypi/websockets@5.0
purl pkg:pypi/websockets@5.0
Next non-vulnerable version None.
Latest non-vulnerable version None.
Risk
Vulnerabilities affecting this package (1)
Vulnerability Summary Fixed by
VCID-66rg-p1q7-hken
Aliases:
CVE-2021-33880
GHSA-8ch4-58qp-g3mp
PYSEC-2021-95
private key recovery
9.1
Affected by 0 other vulnerabilities.
Vulnerabilities fixed by this package (1)
Vulnerability Summary Aliases
VCID-jgps-sj55-xyfj aaugustin websockets version 4 contains a CWE-409: Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in Servers and clients, unless configured with compression=None that can result in Denial of Service by memory exhaustion. This attack appear to be exploitable via Sending a specially crafted frame on an established connection. This vulnerability appears to have been fixed in 5. CVE-2018-1000518
GHSA-6g87-ff9q-v847
PYSEC-2018-79

Date Actor Action Vulnerability Source VulnerableCode Version
2026-06-02T04:38:15.601881+00:00 GitLab Importer Fixing VCID-jgps-sj55-xyfj https://gitlab.com/gitlab-org/advisories-community/-/blob/main/pypi/websockets/CVE-2018-1000518.yml 38.6.0
2026-06-02T04:14:03.978941+00:00 Pypa Importer Affected by VCID-66rg-p1q7-hken https://github.com/pypa/advisory-database/blob/main/vulns/websockets/PYSEC-2021-95.yaml 38.6.0
2026-06-02T04:05:09.869473+00:00 Pypa Importer Fixing VCID-jgps-sj55-xyfj https://github.com/pypa/advisory-database/blob/main/vulns/websockets/PYSEC-2018-79.yaml 38.6.0