{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-48980", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-26T23:26:07.974Z", "datePublished": "2026-06-18T19:26:05.340Z", "dateUpdated": "2026-06-18T19:26:05.340Z"}, "containers": {"cna": {"title": "pam_usb: getenv() used in PAM context allows environment variable injection into local-check logic", "problemTypes": [{"descriptions": [{"cweId": "CWE-454", "lang": "en", "description": "CWE-454: External Initialization of Trusted Variables or Data Stores", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-807", "lang": "en", "description": "CWE-807: Reliance on Untrusted Inputs in a Security Decision", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/mcdope/pam_usb/security/advisories/GHSA-qr83-mf3h-fvqr", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/mcdope/pam_usb/security/advisories/GHSA-qr83-mf3h-fvqr"}, {"name": "https://github.com/mcdope/pam_usb/releases/tag/0.9.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/mcdope/pam_usb/releases/tag/0.9.2"}], "affected": [{"vendor": "mcdope", "product": "pam_usb", "versions": [{"version": "< 0.9.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-18T19:26:05.340Z"}, "descriptions": [{"lang": "en", "value": "pam_usb provides hardware authentication for Linux using removable media. In versions prior to 0.9.2, getenv() environment variables XRDP_SESSION, DISPLAY and TMUX allow environment variable injection into local-check logic. These environment variables influence whether a current session is local or remote, and a PAM module that runs in the context of setuid binaries (sudo, su), getenv() returns attacker-controlled values whenever the process environment has been manipulated by a local user. This issue has been fixed in version 0.9.2."}], "source": {"advisory": "GHSA-qr83-mf3h-fvqr", "discovery": "UNKNOWN"}}}}

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