HOMEVULNERABILITIESCVE-2026-47069
MEDIUM

CVE-2026-47069

CWE-93Published: May 25, 2026· Updated: May 27, 2026

5.3
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:6.2th

Official Description

Improper Neutralization of CRLF Sequences ('CRLF Injection') vulnerability in benoitc hackney allows HTTP Response Splitting. The hackney_cookie:setcookie/3 function in src/hackney_cookie.erl validates the Name and Value arguments against CRLF and control characters, but concatenates the domain and path options verbatim into the output iolist with no equivalent check. An attacker who controls either option — for example by supplying a Host header value forwarded as the cookie domain, or a request path forwarded as the cookie path — can inject a literal CRLF sequence and arbitrary additional Set-Cookie headers into the HTTP response.

This issue affects hackney: from 0.9.0 before 4.0.1.

NVD Source

Technical Analysis

CVE-2026-47069 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.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://cna.erlef.org/cves/CVE-2026-47069.html
PATCHhttps://github.com/benoitc/hackney/commit/8e02b99c28aea1b3fa2ddc0e66f51fe5bb0ac540
PATCHhttps://github.com/benoitc/hackney/security/advisories/GHSA-mp55-p8c9-rfw2
PATCHhttps://osv.dev/vulnerability/EEF-CVE-2026-47069
PATCHhttps://github.com/benoitc/hackney/security/advisories/GHSA-mp55-p8c9-rfw2

All References (5)

→
https://cna.erlef.org/cves/CVE-2026-47069.htmlThird Party Advisory · Patch
→
https://github.com/benoitc/hackney/commit/8e02b99c28aea1b3fa2ddc0e66f51fe5bb0ac540Patch
→
https://github.com/benoitc/hackney/security/advisories/GHSA-mp55-p8c9-rfw2Exploit · Patch · Vendor Advisory
→
https://osv.dev/vulnerability/EEF-CVE-2026-47069Third Party Advisory · Patch
→
https://github.com/benoitc/hackney/security/advisories/GHSA-mp55-p8c9-rfw2Exploit · Patch · Vendor Advisory

Quick Facts

CVE IDCVE-2026-47069
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-93
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedMay 25, 2026

Related CVEs (CWE-93)

CVE-2026-33128
10.0
CVE-2026-45372
9.9
CVE-2026-11362
9.8
CVE-2026-50292
9.8
CVE-2026-50638
9.1
CVE-2026-9270
9.1

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-47069 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.
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