CVE-2026-69215

{"id": "CVE-2026-69215", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.0, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "http4s", "product": "http4s", "versions": [{"status": "affected", "version": "< 0.23.35"}, {"status": "affected", "version": ">= 1.0.0-M1, < 1.0.0-M47"}]}]}], "published": "2026-09-15T20:17:40.950", "references": [{"url": "https://github.com/http4s/http4s/commit/c0a37f38d5ee2a568ba57bd9da62f8d79b8b1fcc", "source": "security-advisories@github.com"}, {"url": "https://github.com/http4s/http4s/releases/tag/v0.23.35", "source": "security-advisories@github.com"}, {"url": "https://github.com/http4s/http4s/releases/tag/v1.0.0-M47", "source": "security-advisories@github.com"}, {"url": "https://github.com/http4s/http4s/security/advisories/GHSA-grh8-3p95-f9rr", "source": "security-advisories@github.com"}], "vulnStatus": "Received", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-565"}, {"lang": "en", "value": "CWE-1275"}]}], "descriptions": [{"lang": "en", "value": "Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, The CookieJar client middleware uses unanchored substring checks instead of RFC 6265 domain and path matching when deciding whether to attach a stored cookie. A cookie for example.com can consequently be sent to an attacker-controlled hostname such as evilexample.com when an application using the same jar makes an attacker-influenced outbound request. This exposes session or authentication cookies and can enable hijacking of the application\u2019s outbound sessions. This issue is fixed in versions 0.23.35 and 1.0.0-M47."}], "lastModified": "2026-09-15T20:17:40.950", "sourceIdentifier": "security-advisories@github.com"}