HOMEVULNERABILITIESCVE-2026-47075
HIGH

CVE-2026-47075

CWE-93Published: May 25, 2026· Updated: May 28, 2026

7.5
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:6.2th

Official Description

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 before 4.0.1.

NVD Source

Technical Analysis

CVE-2026-47075 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Vendors & Products

benoitc1 product
hackney
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (5)

Quick Facts

CVE IDCVE-2026-47075
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-93
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedMay 25, 2026

Related CVEs (CWE-93)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-47075 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.