CVE detail
CVE-2026-47075
Improper Neutralization of CRLF Sequences vulnerability in benoitc hackney allows HTTP Request Splitting. hackney does not percent-encode carriage return (\r) or line feed (\n) characters in the URL query component before constructing the HTTP/1.1 request target. Characters outside the grammar defined in RFC 3986 Section 3.4 must be percent-encoded, but hackney_url:make_url/3 passes the query binary directly without validation or escaping. An attacker who can control all or part of a URL passed to hackney can inject raw CRLF sequences into the query string, which are then sent as HTTP line breaks in the request target. This enables injection of arbitrary HTTP headers or splitting of the HTTP request. This issue affects hackney: from 0.13.1 before 4.0.1.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 16.1 · diversity 11.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
4 source links · newest first
No excerpt available.
Exploitosv.devMay 25, 2026, 3:16 PMNo excerpt available.
Exploitgithub.comMay 25, 2026, 3:16 PMNo excerpt available.
Exploitgithub.comMay 25, 2026, 3:16 PM- https://cna.erlef.org/cves/CVE-2026-47075.htmlcna.erlef.org
No excerpt available.
Vendor Advisorycna.erlef.orgMay 25, 2026, 3:16 PM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
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