{"id":"CVE-2026-55601","revision":null,"records":[{"revision":"6cc6546e01bf453fac384aed2a4a1625","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-55601","aliases":[],"title":"MultiTail: Shell injection in execute-on-match command handling","description":"MultiTail is a utility for monitoring multiple log files in one terminal. In version 7.1.5 and earlier, the -ex and -eX execute-on-match feature appended attacker-controlled matched input to a configured command inside double quotes, then check_filter_exec() in mt.c passed the constructed command through execute_program() in exec.c to sh -c. Partial escaping left shell metacharacters such as command substitution active, allowing an attacker who could influence monitored input to execute commands as the user running MultiTail. No fixed release is available as of this review.","state":0,"publishedAt":"2026-10-13T19:13:31.325+00:00","modifiedAt":"2026-10-13T20:02:24.721+00:00","affected":[{"ecosystem":"Vendor product","name":"multitail","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"folkertvanheusden\",\n                    \"product\": \"multitail\",\n                    \"versions\": [\n                        {\n                            \"version\": \"<= 7.1.5\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","score":7.3,"severity":"HIGH"}],"references":["https://github.com/folkertvanheusden/multitail/security/advisories/GHSA-54vm-wwx8-856h","https://github.com/folkertvanheusden/multitail/issues/56","https://github.com/folkertvanheusden/multitail/commit/84f304e140261034e33796bab81e9bf4f09d153c"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-55601","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-55601","identifiers":["CVE-2026-55601"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-10T06:04:36.9417469+00:00","complete":true,"records":1773,"lastAttemptAt":"2026-11-10T06:04:36.9417469+00:00","lastSuccessAt":"2026-11-10T06:04:37.1495753+00:00","error":null,"lastVerifiedAt":"2026-11-10T06:04:37.1495759+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-8859cf40d4337e24bd2f258cc7778fbad01bb24c79d057aaf34cf1dfc6f8917d-f6cc9b12cdb581c8c26d0d42311ec22aefb7992e88ee12bd79a0c89f476e29ff","complete":true,"records":421887,"lastAttemptAt":"2026-11-10T06:02:15.6675427+00:00","lastSuccessAt":"2026-11-10T06:02:15.5673353+00:00","error":null,"lastVerifiedAt":"2026-11-10T06:02:15.6675427+00:00","snapshotPublishedAt":"2026-11-10T05:23:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-2e6a476534094233b48f2f0b6da5cf35","complete":true,"records":13689,"lastAttemptAt":"2026-11-10T06:05:35.0354037+00:00","lastSuccessAt":"2026-11-10T06:05:35.03+00:00","error":null,"lastVerifiedAt":"2026-11-10T06:05:35.03+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13742,"expectedIdentifiers":13742,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-10T06:04:36.9417469+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-10T06:04:36.9417469+00:00","lastSuccessAt":"2026-11-10T06:04:37.1503787+00:00","error":null,"lastVerifiedAt":"2026-11-10T06:04:37.1503789+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-dcb6f23f313c40328d8b679af29a76c8","complete":false,"records":13695,"lastAttemptAt":"2026-11-10T06:05:02.8914576+00:00","lastSuccessAt":"2026-11-10T06:05:02.887+00:00","error":"100 identifier lookups failed; latest failures include request timeout. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-10T06:05:02.887+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13642,"expectedIdentifiers":13742,"failedIdentifiers":100},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-cdffb4589856378aa42e8d1bd4a6c74e27a180d8160bf764c44715ef760f0a62","complete":true,"records":9932,"lastAttemptAt":"2026-11-10T06:04:29.7401591+00:00","lastSuccessAt":"2026-11-10T00:04:19.8260565+00:00","error":null,"lastVerifiedAt":"2026-11-10T06:04:29.7401591+00:00","snapshotPublishedAt":"2026-11-09T23:48:01+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-26503967ae4379db8f374089589d6e03fb15bd31f820c9e992aaf93840c2236c","complete":true,"records":1971,"lastAttemptAt":"2026-11-10T06:02:15.7348582+00:00","lastSuccessAt":"2026-11-09T21:02:20.472473+00:00","error":null,"lastVerifiedAt":"2026-11-10T06:02:15.7348582+00:00","snapshotPublishedAt":"2026-11-09T20:18:18+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-14f555fdbdce5e9103ab1251a692b612ea1fcd0b3d538af6015a071f4b299249","complete":true,"records":3065,"lastAttemptAt":"2026-11-10T06:04:36.8991666+00:00","lastSuccessAt":"2026-11-10T06:04:36.7449268+00:00","error":null,"lastVerifiedAt":"2026-11-10T06:04:36.8991666+00:00","snapshotPublishedAt":"2026-11-10T05:33:02+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-5b9134a1c92c7f3c542fa77c730904ae6f13b772cb6b6707fc58983c93af0933","complete":true,"records":231596,"lastAttemptAt":"2026-11-10T06:04:29.6144485+00:00","lastSuccessAt":"2026-11-10T06:04:28.0373789+00:00","error":null,"lastVerifiedAt":"2026-11-10T06:04:29.6144485+00:00","snapshotPublishedAt":"2026-11-10T05:33:06+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}