{"cve":"CVE-2026-42507","nvd":{"published":"2026-06-02T23:16:38.027","modified":"2026-07-22T19:10:00.120","status":"Awaiting Analysis","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3},"cwes":[],"references":["https://go.dev/cl/777060","https://go.dev/issue/79346","https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw","https://pkg.go.dev/vuln/GO-2026-5039"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:37:48.043517290+00:00"},"epss":{"cve":"CVE-2026-42507","score":0.0037,"percentile":0.30989,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GO-2026-5039","url":"https://osv.dev/vulnerability/GO-2026-5039","summary":"Arbitrary inputs are included in errors without any escaping in net/textproto","modified":"2026-10-03T10:41:52.575378248Z","packages":[{"ecosystem":"Go","name":"stdlib","purl":"pkg:golang/stdlib","ranges":["<1.25.11",">=1.26.0-0 <1.26.4"],"fixed":["1.25.11","1.26.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}