CVE-2026-52686 in Recursor

Sumário

de MITRE • 23/07/2026

The issue is a DNSSEC validation bypass where wildcard expansion proofs (NSEC/NSEC3 records) are accepted without signature validation when the wildcard answer is a CNAME or DNAME record.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

• Responsável: OX
• Reservar: 08/06/2026
• Divulgação: 23/07/2026
• Moderação: aceite
• Entrada: VDB-382488
• CPE: pronto
• CWE: CWE-288 (confirmado)
• CVSS: 6.5 (VulDB)
• EPSS: 0.00000
• KEV: não
• Atividades: baixo
• Sector: Finance, Telecommunication, ...

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-52686
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-52686
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-52686/