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CVE-2026-47069

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 reques
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:bf5759a150c4cf723226eac7bd7a711a305bf5f7249834147d222c715c5b7bfa
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["hackney_cookie"],"packageName":"hackney","packageURL":"pkg:hex/hackney","product":"hackney","programFiles":["src/hackney_cookie.erl"],"programRoutines":[{"name":"hackney_cookie:setcookie/3"}],"repo":"https://github.com/benoitc/hackney","vendor":"benoitc","versions":[{"lessThan":"4.0.1","status":"affected","version":"0.9.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8272414857e5fe953837291c2e53db584fdaa10050fa8b8276e7bd6d830e6e48 · sha256:cba7d32236e23803… · /containers/cna/affected/0

{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["hackney_cookie"],"packageName":"benoitc/hackney","packageURL":"pkg:github/benoitc/hackney","product":"hackney","programFiles":["src/hackney_cookie.erl"],"programRoutines":[{"name":"hackney_cookie:setcookie/3"}],"repo":"https://github.com/benoitc/hackney","vendor":"benoitc","versions":[{"lessThan":"8e02b99c28aea1b3fa2ddc0e66f51fe5bb0ac540","status":"affected","version":"602d5c7f2ea4acbc83ed75230655d935a0750ebc","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8272414857e5fe953837291c2e53db584fdaa10050fa8b8276e7bd6d830e6e48 · sha256:cba7d32236e23803… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["hackney_cookie"],"packageName":"hackney","packageURL":"pkg:hex/hackney","product":"hackney","programFiles":["src/hackney_cookie.erl"],"programRoutines":[{"name":"hackney_cookie:setcookie/3"}],"repo":"https://github.com/benoitc/hackney","vendor":"benoitc","versions":[{"lessThan":"4.0.1","status":"affected","version":"0.9.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8272414857e5fe953837291c2e53db584fdaa10050fa8b8276e7bd6d830e6e48 · sha256:cba7d32236e23803… · /containers/cna/affected/0
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["hackney_cookie"],"packageName":"benoitc/hackney","packageURL":"pkg:github/benoitc/hackney","product":"hackney","programFiles":["src/hackney_cookie.erl"],"programRoutines":[{"name":"hackney_cookie:setcookie/3"}],"repo":"https://github.com/benoitc/hackney","vendor":"benoitc","versions":[{"lessThan":"8e02b99c28aea1b3fa2ddc0e66f51fe5bb0ac540","status":"affected","version":"602d5c7f2ea4acbc83ed75230655d935a0750ebc","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:8272414857e5fe953837291c2e53db584fdaa10050fa8b8276e7bd6d830e6e48 · sha256:cba7d32236e23803… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":2.1,"baseSeverity":"LOW","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:8272414857e5fe953837291c2e53db584fdaa10050fa8b8276e7bd6d830e6e48 · sha256:cba7d32236e23803… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-93","description":"CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:8272414857e5fe953837291c2e53db584fdaa10050fa8b8276e7bd6d830e6e48 · sha256:cba7d32236e23803… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-47069.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8272414857e5fe953837291c2e53db584fdaa10050fa8b8276e7bd6d830e6e48 · sha256:cba7d32236e23803… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/benoitc/hackney/commit/8e02b99c28aea1b3fa2ddc0e66f51fe5bb0ac540"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8272414857e5fe953837291c2e53db584fdaa10050fa8b8276e7bd6d830e6e48 · sha256:cba7d32236e23803… · /containers/cna/references/3
{"tags":["exploit"],"url":"https://github.com/benoitc/hackney/security/advisories/GHSA-mp55-p8c9-rfw2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8272414857e5fe953837291c2e53db584fdaa10050fa8b8276e7bd6d830e6e48 · sha256:cba7d32236e23803… · /containers/adp/0/references/0
{"tags":["vendor-advisory","related"],"url":"https://github.com/benoitc/hackney/security/advisories/GHSA-mp55-p8c9-rfw2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8272414857e5fe953837291c2e53db584fdaa10050fa8b8276e7bd6d830e6e48 · sha256:cba7d32236e23803… · /containers/cna/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-47069"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:8272414857e5fe953837291c2e53db584fdaa10050fa8b8276e7bd6d830e6e48 · sha256:cba7d32236e23803… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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