{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-35352","assignerOrgId":"cc1ad9ee-3454-478d-9317-d3e869d708bc","state":"PUBLISHED","assignerShortName":"canonical","dateReserved":"2026-04-02T12:58:56.087Z","datePublished":"2026-04-22T16:08:07.422Z","dateUpdated":"2026-05-04T17:32:54.701Z"},"containers":{"cna":{"title":"uutils coreutils mkfifo Privilege Escalation via TOCTOU Race Condition","affected":[{"vendor":"Uutils","product":"coreutils","platforms":["Linux","Unix","macOS"],"collectionURL":"https://github.com/uutils","packageName":"coreutils","repo":"https://github.com/uutils/coreutils","defaultStatus":"affected"}],"problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-367","description":"CWE-367: Time-of-Check Time-of-Use (TOCTOU) Race Condition","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-29","descriptions":[{"lang":"en","value":"CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions"}]}],"descriptions":[{"lang":"en","value":"A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the mkfifo utility of uutils coreutils. The utility creates a FIFO and then performs a path-based chmod to set permissions. A local attacker with write access to the parent directory can swap the newly created FIFO for a symbolic link between these two operations. This redirects the chmod call to an arbitrary file, potentially enabling privilege escalation if the utility is run with elevated privileges."}],"references":[{"url":"https://github.com/uutils/coreutils/issues/10020","tags":["issue-tracking"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"HIGH","baseScore":7,"vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"}}],"credits":[{"lang":"en","value":"Zellic","type":"finder"}],"source":{"discovery":"EXTERNAL"},"providerMetadata":{"orgId":"cc1ad9ee-3454-478d-9317-d3e869d708bc","shortName":"canonical","dateUpdated":"2026-04-22T16:08:07.422Z"}},"adp":[{"references":[{"url":"https://github.com/uutils/coreutils/issues/10020","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-24T13:42:47.744415Z","id":"CVE-2026-35352","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-24T13:42:55.541Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/05/04/4"},{"url":"http://www.openwall.com/lists/oss-security/2026/05/04/5"},{"url":"http://www.openwall.com/lists/oss-security/2026/05/04/6"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-05-04T17:32:54.701Z"}}]}}