CVE-2020-7662
- Source
- https://cve.org/CVERecord?id=CVE-2020-7662
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-7662.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2020-7662
- Aliases
-
- GHSA-g78m-2chm-r7qv
- SNYK-JS-WEBSOCKETEXTENSIONS-570623
- Downstream
AZL (1)
CLSA (1)
RHSA (2)
- Published
- 2020-06-02T19:15:12Z
- Modified
- 2026-10-16T02:49:48Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
websocket-extensions npm module prior to 0.1.4 allows Denial of Service (DoS) via Regex Backtracking. The extension parser may take quadratic time when parsing a header containing an unclosed string parameter value whose content is a repeating two-byte sequence of a backslash and some other character. This could be abused by an attacker to conduct Regex Denial Of Service (ReDoS) on a single-threaded server by providing a malicious payload with the Sec-WebSocket-Extensions header.
- References
-
- https://github.com/faye/websocket-extensions-node/commit/29496f6838bfadfe5a2f85dff33ed0ba33873237
- https://blog.jcoglan.com/2020/06/02/redos-vulnerability-in-websocket-extensions
- https://github.com/faye/websocket-extensions-node/security/advisories/GHSA-g78m-2chm-r7qv
- https://snyk.io/vuln/SNYK-JS-WEBSOCKETEXTENSIONS-570623
Affected packages
Git / github.com/faye/websocket-extensions-node
Affected ranges
- Type
- GIT
- Repo
- https://github.com/faye/websocket-extensions-node
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:websocket-extensions_project:websocket-extensions:*:*:*:*:*:node.js:*:*", "range": [ { "introduced": "0" }, { "fixed": "0.1.4" } ], "source": "CPE_RANGE" }, { "range": [ { "fixed": "29496f6838bfadfe5a2f85dff33ed0ba33873237" } ], "source": "REFERENCES_COMMIT" } ] }