{"id":"CLEANSTART-2026-SS34822","summary":"ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label","details":"Multiple security vulnerabilities affect the metallb package. The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label. See references for individual vulnerability details.","modified":"2026-09-10T03:15:05.996240440Z","published":"2026-09-10T01:15:08.033954Z","upstream":["CVE-2026-14362","CVE-2026-33818","CVE-2026-39821","CVE-2026-39822","CVE-2026-42505","CVE-2026-46600","CVE-2026-56852","CVE-2026-56853","CVE-2026-56858","CVE-2026-56859","CVE-2026-56860","CVE-2026-56862"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-SS34822.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-14362"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-33818"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-39821"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-39822"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-42505"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-46600"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-56852"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-56853"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-56858"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-56859"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-56860"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-56862"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-14362"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33818"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39821"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39822"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42505"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46600"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56852"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56853"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56858"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56859"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56860"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56862"}],"affected":[{"package":{"name":"metallb","ecosystem":"CleanStart"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.15.3-r2"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-SS34822.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}