CVE-2026-22860

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"value": "Rack is a modular Ruby web server interface. Prior to versions 2.2.22, 3.1.20, and 3.2.5, `Rack::Directory`\u2019s path check used a string prefix match on the expanded path. A request like `/../root_example/` can escape the configured root if the target path starts with the root string, allowing directory listing outside the intended root. Versions 2.2.22, 3.1.20, and 3.2.5 fix the issue."}, {"lang": "es", "value": "Rack es una interfaz modular de servidor web Ruby. Antes de las versiones 2.2.22, 3.1.20 y 3.2.5, la verificaci\u00f3n de ruta de 'Rack::Directory' utilizaba una coincidencia de prefijo de cadena en la ruta expandida. Una solicitud como '/../root_example/' puede escapar de la ra\u00edz configurada si la ruta de destino comienza con la cadena ra\u00edz, permitiendo la enumeraci\u00f3n de directorios fuera de la ra\u00edz prevista. Las versiones 2.2.22, 3.1.20 y 3.2.5 solucionan el problema."}], "id": "CVE-2026-22860", "lastModified": "2026-07-15T02:18:39.003", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-22860", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-02-18T19:27:31.243687Z", "version": "2.0.3"}}]}, "published": "2026-02-18T19:21:43.933", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/rack/rack/commit/75c5745c286637a8f049a33790c71237762069e7"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "url": "https://github.com/rack/rack/security/advisories/GHSA-mxw3-3hh2-x2mh"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/security/cve/CVE-2026-22860"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2440737"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-22860.json"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-548"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-22"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}]}

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"cpe:/a:redhat:red_hat_3scale_amp:2", "fix_state": "Affected", "package_name": "3scale-amp2/zync-rhel8", "product_name": "Red Hat 3scale API Management Platform 2"}, {"cpe": "cpe:/a:redhat:red_hat_3scale_amp:2", "fix_state": "Affected", "package_name": "3scale-amp2/zync-rhel9", "product_name": "Red Hat 3scale API Management Platform 2"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "pcs", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "pcs", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "pcs", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "pcs", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-02-18T18:45:02Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-22860\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-22860\nhttps://github.com/rack/rack/commit/75c5745c286637a8f049a33790c71237762069e7\nhttps://github.com/rack/rack/security/advisories/GHSA-mxw3-3hh2-x2mh"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.2.22)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.0.0.beta1,3.1.20)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.2.0,3.2.5)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "rack", "source": "cna", "vendor": "rack"}, "product": "rack", "vendor": "rack"}], "analysis": {"en": {"generated_at": "2026-04-17T18:34:35.235832+00:00", "value": {"mitigation_remediation": ["Upgrade Rack to version 2.2.22 or later, 3.1.20 or later, or 3.2.5 or later to apply the fix.", "Restart the application or web server so that the updated Rack library is loaded.", "If upgrading is temporarily infeasible, configure the application to disable or limit directory listing functionality provided by Rack::Directory to prevent exposure of unintended files."], "summary": {"action": "Immediate Patch", "impact": "Directory Traversal allowing unintended directory listings and potential access to sensitive files"}, "threat_synthesis": {"affected_systems": "The vulnerability affects all Rack installations running versions earlier than 2.2.22, 3.1.20, or 3.2.5. These releases are distributed by the Rack project and used by Ruby web applications that rely on the Rack::Directory middleware for static file serving.", "description_and_impact": "Rack, a modular Ruby web server interface, implements directory listing through the Rack::Directory middleware. Prior to specified releases, the middleware performed a path check by matching the expanded path against the configured root using a simple string prefix comparison. This logic flaw lets an attacker craft a request such as '/../root_example/' that bypasses the root restriction, resulting in directory listings outside the intended root. The exposed data can include configuration files, source code, or other sensitive files located above the documented root, thereby compromising confidentiality.", "risk_and_exploitability": "The CVSS score of 7.5 indicates high severity. The EPSS score is less than 1%, suggesting low current exploitation probability, though planning or targeted attacks remain feasible. The vulnerability is not listed in the CISA KEV catalog. Attackers can exploit it remotely by sending HTTP requests to an application that employs Rack::Directory. Successful exploitation permits listing of directories outside the configured root, potentially exposing sensitive information without requiring authentication."}}}}, "created": "2026-02-19T10:11:28.900217+00:00", "updated": "2026-04-17T18:45:25.542531+00:00", "vendors": ["rack", "rack$PRODUCT$rack"]}