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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
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:52d770d7383da24db6250fc6482c73e00d5b4a36dc657aed82a67de324a13a01
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://github.com","cpes":["cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["hackney_url"],"packageName":"benoitc/hackney","packageURL":"pkg:github/benoitc/hackney","product":"hackney","programFiles":["src/hackney_url.erl"],"programRoutines":[{"name":"hackney_url:make_url/3"}],"repo":"https://github.com/benoitc/hackney","vendor":"benoitc","versions":[{"lessThan":"ca73dd0aba0ed557449c18288bf07241671a43c9","status":"affected","version":"8bb1a359a81ae58567c84f8d24564e9742e6f2bd","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3b325bcde93dea832d5bc2b566493cea9b611d533a193ab4381cf97741bf15f8 · sha256:4838a1070962e70a… · /containers/cna/affected/1

{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["hackney_url"],"packageName":"hackney","packageURL":"pkg:hex/hackney","product":"hackney","programFiles":["src/hackney_url.erl"],"programRoutines":[{"name":"hackney_url:make_url/3"}],"repo":"https://github.com/benoitc/hackney","vendor":"benoitc","versions":[{"lessThan":"4.0.1","status":"affected","version":"0.13.1","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3b325bcde93dea832d5bc2b566493cea9b611d533a193ab4381cf97741bf15f8 · sha256:4838a1070962e70a… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["hackney_url"],"packageName":"benoitc/hackney","packageURL":"pkg:github/benoitc/hackney","product":"hackney","programFiles":["src/hackney_url.erl"],"programRoutines":[{"name":"hackney_url:make_url/3"}],"repo":"https://github.com/benoitc/hackney","vendor":"benoitc","versions":[{"lessThan":"ca73dd0aba0ed557449c18288bf07241671a43c9","status":"affected","version":"8bb1a359a81ae58567c84f8d24564e9742e6f2bd","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3b325bcde93dea832d5bc2b566493cea9b611d533a193ab4381cf97741bf15f8 · sha256:4838a1070962e70a… · /containers/cna/affected/1
{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["hackney_url"],"packageName":"hackney","packageURL":"pkg:hex/hackney","product":"hackney","programFiles":["src/hackney_url.erl"],"programRoutines":[{"name":"hackney_url:make_url/3"}],"repo":"https://github.com/benoitc/hackney","vendor":"benoitc","versions":[{"lessThan":"4.0.1","status":"affected","version":"0.13.1","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3b325bcde93dea832d5bc2b566493cea9b611d533a193ab4381cf97741bf15f8 · sha256:4838a1070962e70a… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":6.8,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"HIGH","userInteraction":"ACTIVE","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3b325bcde93dea832d5bc2b566493cea9b611d533a193ab4381cf97741bf15f8 · sha256:4838a1070962e70a… · /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:v2:3b325bcde93dea832d5bc2b566493cea9b611d533a193ab4381cf97741bf15f8 · sha256:4838a1070962e70a… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-47075.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3b325bcde93dea832d5bc2b566493cea9b611d533a193ab4381cf97741bf15f8 · sha256:4838a1070962e70a… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/benoitc/hackney/commit/ca73dd0aba0ed557449c18288bf07241671a43c9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3b325bcde93dea832d5bc2b566493cea9b611d533a193ab4381cf97741bf15f8 · sha256:4838a1070962e70a… · /containers/cna/references/3
{"tags":["vendor-advisory","related"],"url":"https://github.com/benoitc/hackney/security/advisories/GHSA-j9wq-vxxc-94wf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3b325bcde93dea832d5bc2b566493cea9b611d533a193ab4381cf97741bf15f8 · sha256:4838a1070962e70a… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/benoitc/hackney/security/advisories/GHSA-j9wq-vxxc-94wf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3b325bcde93dea832d5bc2b566493cea9b611d533a193ab4381cf97741bf15f8 · sha256:4838a1070962e70a… · /containers/adp/0/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-47075"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3b325bcde93dea832d5bc2b566493cea9b611d533a193ab4381cf97741bf15f8 · sha256:4838a1070962e70a… · /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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