{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-91202", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-09-14T21:58:42.731Z", "datePublished": "2026-09-18T19:21:11.039Z", "dateUpdated": "2026-10-19T03:59:23.649Z"}, "containers": {"cna": {"title": "Cockpit-files: cockpit-files: arbitrary file ownership change via symlink following in privileged paste", "metrics": [{"other": {"content": {"value": "Moderate", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "A flaw was found in cockpit-files. A low-privileged local user can exploit this vulnerability by crafting a directory containing a symbolic link (symlink) and then using the privileged \"Paste as owner\" function. This allows for arbitrary file ownership changes outside the intended pasted directory, leading to a compromise of data integrity. In some cases, this could also lead to reduced confidentiality if the new ownership grants unauthorized read access. Exploitation requires user interaction to select a non-original owner during the paste operation."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "cockpit-files", "defaultStatus": "affected", "versions": [{"version": "0:36.1-1.el9_8", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "cockpit-files", "defaultStatus": "affected", "cpes": ["cpe:/o:redhat:enterprise_linux:10"]}], "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:84595", "name": "RHSA-2026:84595", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/security/cve/CVE-2026-91202", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2465834", "name": "RHBZ#2465834", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2026-09-18T16:33:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-61", "description": "UNIX Symbolic Link (Symlink) Following", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-61: UNIX Symbolic Link (Symlink) Following", "workarounds": [{"lang": "en", "value": "A workaround is available for this issue: avoid using the privileged \"Paste as owner\" option in cockpit-files when pasting copied directory trees that may contain symlinks. If a privileged paste is required, keep the owner selection at \"original\", which skips the recursive chown code path entirely and prevents ownership changes from following symlinks to files outside the pasted directory. Once updated cockpit-files packages containing the fix are available for the affected streams, installing them resolves the issue."}], "timeline": [{"lang": "en", "time": "2026-05-04T16:26:35.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-09-18T16:33:00.000Z", "value": "Made public."}], "credits": [{"lang": "en", "value": "This issue was discovered by Found by AISLE in partnership with Red Hat."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-10-19T03:59:23.649Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-22T15:27:29.387652Z", "id": "CVE-2026-91202", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-22T15:28:45.417Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-91202", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-22T15:27:29.387652Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-22T15:27:37.111Z"}}], "cna": {"title": "Cockpit-files: cockpit-files: arbitrary file ownership change via symlink following in privileged paste", "credits": [{"lang": "en", "value": "This issue was discovered by Found by AISLE in partnership with Red Hat."}], "metrics": [{"other": {"type": "Red Hat severity rating", "content": {"value": "Moderate", "namespace": "https://access.redhat.com/security/updates/classification/"}}}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}], "affected": [{"cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "versions": [{"status": "unaffected", "version": "0:36.1-1.el9_8", "lessThan": "*", "versionType": "rpm"}], "packageName": "cockpit-files", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:10"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "packageName": "cockpit-files", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}], "timeline": [{"lang": "en", "time": "2026-05-04T16:26:35.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-09-18T16:33:00.000Z", "value": "Made public."}], "datePublic": "2026-09-18T16:33:00.000Z", "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:84595", "name": "RHSA-2026:84595", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/security/cve/CVE-2026-91202", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2465834", "name": "RHBZ#2465834", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "workarounds": [{"lang": "en", "value": "A workaround is available for this issue: avoid using the privileged \"Paste as owner\" option in cockpit-files when pasting copied directory trees that may contain symlinks. If a privileged paste is required, keep the owner selection at \"original\", which skips the recursive chown code path entirely and prevents ownership changes from following symlinks to files outside the pasted directory. Once updated cockpit-files packages containing the fix are available for the affected streams, installing them resolves the issue."}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "A flaw was found in cockpit-files. A low-privileged local user can exploit this vulnerability by crafting a directory containing a symbolic link (symlink) and then using the privileged \"Paste as owner\" function. This allows for arbitrary file ownership changes outside the intended pasted directory, leading to a compromise of data integrity. In some cases, this could also lead to reduced confidentiality if the new ownership grants unauthorized read access. Exploitation requires user interaction to select a non-original owner during the paste operation."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-61", "description": "UNIX Symbolic Link (Symlink) Following"}]}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-10-19T03:59:23.649Z"}, "x_redhatCweChain": "CWE-61: UNIX Symbolic Link (Symlink) Following"}}, "cveMetadata": {"cveId": "CVE-2026-91202", "state": "PUBLISHED", "dateUpdated": "2026-10-19T03:59:23.649Z", "dateReserved": "2026-09-14T21:58:42.731Z", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "datePublished": "2026-09-18T19:21:11.039Z", "assignerShortName": "redhat"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream"], "defaultStatus": "affected", "packageName": "cockpit-files", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:36.1-1.el9_8", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:10"], "defaultStatus": "affected", "packageName": "cockpit-files", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat"}], "source": "secalert@redhat.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in cockpit-files. A low-privileged local user can exploit this vulnerability by crafting a directory containing a symbolic link (symlink) and then using the privileged \"Paste as owner\" function. This allows for arbitrary file ownership changes outside the intended pasted directory, leading to a compromise of data integrity. In some cases, this could also lead to reduced confidentiality if the new ownership grants unauthorized read access. Exploitation requires user interaction to select a non-original owner during the paste operation."}], "id": "CVE-2026-91202", "lastModified": "2026-10-19T04:17:09.787", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 1.3, "impactScore": 4.7, "source": "secalert@redhat.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-91202", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-22T15:27:29.387652Z", "version": "2.0.3"}}]}, "published": "2026-09-18T20:17:29.260", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:84595"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2026-91202"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2465834"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-61"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"acknowledgement": "This issue was discovered by Found by AISLE in partnership with Red Hat.", "bugzilla": {"description": "cockpit-files: cockpit-files: Arbitrary file ownership change via symlink following in privileged paste", "id": "2465834", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2465834"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L", "status": "draft"}, "cwe": "CWE-61", "details": ["A flaw was found in cockpit-files. A low-privileged local user can exploit this vulnerability by crafting a directory containing a symbolic link (symlink) and then using the privileged \"Paste as owner\" function. This allows for arbitrary file ownership changes outside the intended pasted directory, leading to a compromise of data integrity. In some cases, this could also lead to reduced confidentiality if the new ownership grants unauthorized read access. Exploitation requires user interaction to select a non-original owner during the paste operation."], "name": "CVE-2026-91202", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "cockpit-files", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "cockpit-files", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-09-18T16:33:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-91202\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-91202"], "statement": "This issue in `cockpit-files` allows a local, low-privileged user to change arbitrary file ownership via symlink following during a privileged paste operation. Exploitation requires a crafted directory tree with symlinks, the use of the 'Paste as owner' feature in Cockpit with superuser mode, and user interaction to select a non-'original' owner, making it less straightforward to exploit than an Important issue.", "threat_severity": "Moderate"}