{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-56091", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-06-18T17:12:37.896Z", "datePublished": "2026-06-25T08:45:19.426Z", "dateUpdated": "2026-06-25T08:45:19.426Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected", "packageName": "org.apache.shiro:shiro-guice", "product": "Apache Shiro", "vendor": "Apache Software Foundation", "versions": [{"lessThanOrEqual": "2.99.99", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "3.0.0-alpha-1", "status": "affected", "version": "3.0.0-alpha-0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "finder", "value": "LocalHost <localhost.detect@gmail.com>"}, {"lang": "en", "type": "remediation developer", "value": "Lenny Primak <lenny@flowlogix.com>"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "When using Apache Shiro with the shiro-guice module in a web servlet context, a specially crafted HTTP request may cause an authentication bypass.<br>This vulnerability is similar to <a target=\"_blank\" rel=\"nofollow\" href=\"https://www.cve.org/CVERecord?id=CVE-2020-1957[CVE-2020-1957\">https://www.cve.org/CVERecord?id=CVE-2020-1957</a>, except that it affects the `shiro-guice` module instead of the `shiro-spring` module.<br><br>This issue affects all Apache Shiro versions through 2.x, and 3.0.0-alpha-1 only when using `shiro-guice` module in a web servlet context.<br><br>Upgrade to version 3.0.0 or later, which fixes the issue.<br>"}], "value": "When using Apache Shiro with the shiro-guice module in a web servlet context, a specially crafted HTTP request may cause an authentication bypass.\nThis vulnerability is similar to https://www.cve.org/CVERecord?id=CVE-2020-1957 https://www.cve.org/CVERecord , except that it affects the `shiro-guice` module instead of the `shiro-spring` module.\n\nThis issue affects all Apache Shiro versions through 2.x, and 3.0.0-alpha-1 only when using `shiro-guice` module in a web servlet context.\n\nUpgrade to version 3.0.0 or later, which fixes the issue."}], "metrics": [{"cvssV4_0": {"Automatable": "YES", "Recovery": "NOT_DEFINED", "Safety": "PRESENT", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 8.2, "baseSeverity": "HIGH", "privilegesRequired": "NONE", "providerUrgency": "AMBER", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "DIFFUSE", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/S:P/AU:Y/V:D/RE:L/U:Amber", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "LOW"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-289", "description": "CWE-289 Authentication Bypass by Alternate Name", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-06-25T08:45:19.426Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://lists.apache.org/thread/onmtxmy2qonbpx7xlw3o34x8sctv47r7"}], "source": {"discovery": "EXTERNAL"}, "title": "Apache Shiro: Authentication bypass in Guice-Web integration", "x_generator": {"engine": "Vulnogram 0.2.0"}}}}

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