{"schemaVersion":3,"id":"CVE-2026-21620","aliases":["UBUNTU-CVE-2026-21620","DEBIAN-CVE-2026-21620"],"status":"published","duplicateOf":null,"title":null,"description":"Relative Path Traversal, Improper Isolation or Compartmentalization vulnerability in erlang otp erlang/otp (tftp_file modules), erlang otp inets (tftp_file modules), erlang otp tftp (tftp_file modules) allows Relative Path Traversal. 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Path Traversal","description":"The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as \"..\" that can resolve to a location that is outside of that directory.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/23.html"}],"affected":[{"vendor":"debian","product":"erlang","name":"erlang","label":"erlang","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/erlang","purlType":"deb","versions":[{"text":"< 1:25.2.3+dfsg-1+deb12u4","noFixRecorded":false,"fixedIn":null},{"text":"< 1:27.3.4.1+dfsg-1+deb13u2","noFixRecorded":false,"fixedIn":null},{"text":"< 1:27.3.4.8+dfsg-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:25.2.3+dfsg-1+deb12u4 | < 1:27.3.4.1+dfsg-1+deb13u2 | < 1:27.3.4.8+dfsg-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"erlang","name":"erlang","label":"erlang","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/erlang","purlType":"deb","versions":[{"text":"< 1:16.b.3-dfsg-1ubuntu2.2+esm3","noFixRecorded":false,"fixedIn":null},{"text":"< 1:18.3-dfsg-1ubuntu3.1+esm4","noFixRecorded":false,"fixedIn":null},{"text":"< 1:20.2.2+dfsg-1ubuntu2+esm4","noFixRecorded":false,"fixedIn":null},{"text":"< 1:22.2.7+dfsg-1ubuntu0.5+esm3","noFixRecorded":false,"fixedIn":null},{"text":"< 1:24.2.1+dfsg-1ubuntu0.8","noFixRecorded":false,"fixedIn":null},{"text":"< 1:25.3.2.8+dfsg-1ubuntu4.8","noFixRecorded":false,"fixedIn":null},{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 1:27.3.4.6+dfsg-1ubuntu0.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:16.b.3-dfsg-1ubuntu2.2+esm3 | < 1:18.3-dfsg-1ubuntu3.1+esm4 | < 1:20.2.2+dfsg-1ubuntu2+esm4 | < 1:22.2.7+dfsg-1ubuntu0.5+esm3 | < 1:24.2.1+dfsg-1ubuntu0.8 | < 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