CVE-2026-27459

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"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "packageName": "rhoai/odh-mlflow-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:openshift:4"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4", "packageName": "pyOpenSSL", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:openstack:17.1"], "vendor": "Red Hat", "product": "Red Hat OpenStack Platform 17.1", "packageName": "pyOpenSSL", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:openstack:18.0"], "vendor": "Red Hat", "product": "Red Hat OpenStack Platform 18.0", "packageName": "pyOpenSSL", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:satellite:6"], "vendor": "Red Hat", "product": "Red Hat Satellite 6", "packageName": "satellite/iop-advisor-engine-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:satellite:6"], "vendor": "Red Hat", "product": "Red Hat Satellite 6", "packageName": "satellite/iop-insights-engine-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}]}], "published": "2026-03-18T00:16:19.273", "references": [{"url": "https://github.com/pyca/pyopenssl/blob/358cbf29c4e364c59930e53a270116249581eaa3/CHANGELOG.rst", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/pyca/pyopenssl/commit/57f09bb4bb051d3bc2a1abd36e9525313d5cd408", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/pyca/pyopenssl/security/advisories/GHSA-5pwr-322w-8jr4", "tags": 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"https://access.redhat.com/security/cve/CVE-2026-27459", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2448503", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27459.json", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-120"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-120"}]}], "descriptions": [{"lang": "en", "value": "pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 22.0.0 and prior to version 26.0.0, if a user provided callback to `set_cookie_generate_callback` returned a cookie value greater than 256 bytes, pyOpenSSL would overflow an OpenSSL provided buffer. Starting in version 26.0.0, cookie values that are too long are now rejected."}, {"lang": "es", "value": "pyOpenSSL es un envoltorio de Python para la biblioteca OpenSSL. A partir de la versi\u00f3n 22.0.0 y antes de la versi\u00f3n 26.0.0, si una devoluci\u00f3n de llamada proporcionada por el usuario a set_cookie_generate_callback devolv\u00eda un valor de cookie superior a 256 bytes, pyOpenSSL desbordar\u00eda un b\u00fafer proporcionado por OpenSSL. A partir de la versi\u00f3n 26.0.0, los valores de cookie que son demasiado largos ahora son rechazados."}], "lastModified": "2026-07-20T12:18:22.423", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:pyopenssl:pyopenssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "36CBBDFE-83B3-4F32-98E6-49E62AD0BD1B", "versionEndExcluding": "26.0.0", "versionStartIncluding": "22.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}