{"id":"GO-2026-5039","aliases":["BIT-golang-2026-42507","CVE-2026-42507"],"title":"Arbitrary inputs are included in errors without any escaping in net/textproto","titleSource":"OSV","descriptionSource":"OSV","description":"When returning errors, functions in the net/textproto package would include its input as part of the error. This might allow an attacker to inject misleading content to errors that are printed or logged.","severity":"unknown","score":null,"published":"2026-06-02T21:39:47.000Z","modified":"2026-11-14T13:12:14.066Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Go","name":"stdlib","sources":[{"name":"OSV · GO-2026-5039","url":"https://osv.dev/vulnerability/GO-2026-5039"}],"ranges":[{"events":[{"introduced":"0"},{"fixed":"1.25.11"},{"introduced":"1.26.0-0"},{"fixed":"1.26.4"}],"type":"SEMVER"}],"versions":[],"fixed":["1.25.11","1.26.4"]}],"sourceAffected":[],"references":["https://go.dev/issue/79346","https://go.dev/cl/777060","https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw"],"sources":[{"name":"OSV","id":"GO-2026-5039","modified":"2026-11-14T13:12:14.066829523Z","url":"https://osv.dev/vulnerability/GO-2026-5039"}],"assessments":[],"products":[],"remediation":[],"observedAt":"2026-11-14T15:23:05.295Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T01:05:31.807Z"},"coverage":[{"source":"NVD","status":"refresh-failed","attemptedAt":"2026-11-14T16:06:01.147Z"},{"source":"GHSA","status":"available","checkedAt":"2026-11-14T15:55:39.771Z","attemptedAt":"2026-11-14T15:55:39.771Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-14T15:55:40.379Z","attemptedAt":"2026-11-14T15:55:40.379Z"},{"source":"EPSS","status":"available","checkedAt":"2026-11-14T15:55:39.192Z","attemptedAt":"2026-11-14T15:55:39.192Z"}],"evidence":[{"source":"FIRST EPSS","id":"CVE-2026-42507","url":"https://www.first.org/epss/","probability":0.0037,"percentile":0.31456,"date":"2026-11-14","checkedAt":"2026-11-14T15:55:39.192Z"},{"source":"GitHub Advisory Database","id":"GHSA-h3gm-q7m7-mp28","url":"https://github.com/advisories/GHSA-h3gm-q7m7-mp28","modified":"2026-06-03T21:31:32Z","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","checkedAt":"2026-11-14T15:55:39.771Z"},{"source":"ENISA EUVD","id":"EUVD-2026-34040","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-34040","modified":"Jun 3, 2026, 7:04:45 PM","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","checkedAt":"2026-11-14T15:55:40.379Z"}],"aiSummary":null}