CVE-2025-59822

{"id": "CVE-2025-59822", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 6.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2025-09-23T19:15:42.303", "references": [{"url": "https://github.com/http4s/http4s/commit/dd518f7c967e5165813b8d4a48a82b8fab852d41", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/http4s/http4s/security/advisories/GHSA-wcwh-7gfw-5wrr", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/http4s/http4s/security/advisories/GHSA-wcwh-7gfw-5wrr", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-444"}]}], "descriptions": [{"lang": "en", "value": "Http4s is a Scala interface for HTTP services. In versions from 1.0.0-M1 to before 1.0.0-M45 and before 0.23.31, http4s is vulnerable to HTTP Request Smuggling due to improper handling of HTTP trailer section. This vulnerability could enable attackers to bypass front-end servers security controls, launch targeted attacks against active users, and poison web caches. A pre-requisite for exploitation involves the web application being deployed behind a reverse-proxy that forwards trailer headers. This issue has been patched in versions 1.0.0-M45 and 0.23.31."}], "lastModified": "2025-10-08T17:35:04.200", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:typelevel:http4s:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "861A0064-65E6-4742-8A82-2942BCCAA03B", "versionEndExcluding": "0.23.31"}, {"criteria": "cpe:2.3:a:typelevel:http4s:1.0.0:milestone1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "65C497F9-281C-4565-BD36-B6B4D7E6F8BD"}, {"criteria": "cpe:2.3:a:typelevel:http4s:1.0.0:milestone10:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6FCFC3E5-7530-4AAA-A2C7-36DC307B613B"}, {"criteria": "cpe:2.3:a:typelevel:http4s:1.0.0:milestone11:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D03CBFE3-0B31-4D7C-BC5D-61DCD3C2C486"}, {"criteria": "cpe:2.3:a:typelevel:http4s:1.0.0:milestone12:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "76F8BC53-544C-4285-8D9B-CB91AD080048"}, {"criteria": 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