{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-25704", "assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb", "state": "PUBLISHED", "assignerShortName": "suse", "dateReserved": "2026-02-05T15:37:24.184Z", "datePublished": "2026-03-30T07:44:39.672Z", "dateUpdated": "2026-03-30T07:44:39.672Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb", "shortName": "suse", "dateUpdated": "2026-03-30T07:44:39.672Z"}, "title": "Incomplete privilege drop for com.system76.CosmicGreeter.GetUserData", "datePublic": "2026-03-11T11:25:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-271", "description": "CWE-271: Privilege Dropping / Lowering Errors", "type": "CWE"}]}, {"descriptions": [{"lang": "en", "cweId": "CWE-367", "description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition", "type": "CWE"}]}], "affected": [{"vendor": "pop-os", "product": "cosmic-greeter", "packageName": "cosmic-greeter", "versions": [{"status": "affected", "version": "?", "lessThan": "https://github.com/pop-os/cosmic-greeter/pull/426", "versionType": "git"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "A Privilege Dropping / Lowering Errors/Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in\u00a0 cosmic-greeter can allow an attacker to regain privileges that should have been dropped and abuse them in the racy checking logic.\n\n\n\n\nThis issue affects cosmic-greeter before https://github.Com/pop-os/cosmic-greeter/pull/426.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<div>A Privilege Dropping / Lowering Errors/Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in&nbsp; cosmic-greeter can allow an attacker to regain privileges that should have been dropped and abuse them in the racy checking logic.</div><div><br></div><p>This issue affects cosmic-greeter before https://github.Com/pop-os/cosmic-greeter/pull/426.</p>"}]}], "references": [{"url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-25704"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "LOCAL", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 5.8, "vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N"}}], "credits": [{"lang": "en", "value": "Matthias Gerstner of SUSE", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.1"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "A Privilege Dropping / Lowering Errors/Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in\u00a0 cosmic-greeter can allow an attacker to regain privileges that should have been dropped and abuse them in the racy checking logic.\n\n\n\n\nThis issue affects cosmic-greeter before https://github.Com/pop-os/cosmic-greeter/pull/426."}], "id": "CVE-2026-25704", "lastModified": "2026-03-30T08:16:16.990", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "LOCAL", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.8, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "meissner@suse.de", "type": "Secondary"}]}, "published": "2026-03-30T08:16:16.990", "references": [{"source": "meissner@suse.de", "url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-25704"}], "sourceIdentifier": "meissner@suse.de", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-271"}, {"lang": "en", "value": "CWE-367"}], "source": "meissner@suse.de", "type": "Primary"}]}

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