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CVE-2026-33637

Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. Versions 2.0.0 through 2.14.1 still allow protocol-relative host override when the request target is passed as a URI object (rather than a String) to Faraday::Connection#build_exclusive_url. This bypasses the February 2026 fix for GHSA-33mh-2634-fwr2 and enables off-host request forgery: a request built from a fixed-base Faraday::Connection can be redirected to an attacker-controlled host, fo
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0919127139a01193b59435ae2ebc1377a72c82b27de97ec46d1112d3f8e3bbf2
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"faraday","vendor":"lostisland","versions":[{"status":"affected","version":">= 2.0.0, <= 2.14.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:879e049473969073c1b7fe6603119122e537ebdf30358f53d6a689457472886d · sha256:e64ff63f78d3391c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":0,"baseSeverity":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:879e049473969073c1b7fe6603119122e537ebdf30358f53d6a689457472886d · sha256:e64ff63f78d3391c… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:879e049473969073c1b7fe6603119122e537ebdf30358f53d6a689457472886d · sha256:e64ff63f78d3391c… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/advisories/GHSA-33mh-2634-fwr2","tags":["x_refsource_MISC"],"url":"https://github.com/advisories/GHSA-33mh-2634-fwr2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:879e049473969073c1b7fe6603119122e537ebdf30358f53d6a689457472886d · sha256:e64ff63f78d3391c… · /containers/cna/references/1
{"tags":["exploit"],"url":"https://github.com/lostisland/faraday/security/advisories/GHSA-5rv5-xj5j-3484"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:879e049473969073c1b7fe6603119122e537ebdf30358f53d6a689457472886d · sha256:e64ff63f78d3391c… · /containers/adp/0/references/0
{"name":"https://github.com/lostisland/faraday/security/advisories/GHSA-5rv5-xj5j-3484","tags":["x_refsource_CONFIRM"],"url":"https://github.com/lostisland/faraday/security/advisories/GHSA-5rv5-xj5j-3484"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:879e049473969073c1b7fe6603119122e537ebdf30358f53d6a689457472886d · sha256:e64ff63f78d3391c… · /containers/cna/references/0

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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