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[NEW] [medium] CoreDNS: Multiple vulnerabilities allow Denial of Service

medium
A remote, anonymous attacker can exploit multiple vulnerabilities in CoreDNS to conduct a Denial of Service attack.

CSIRTS triage

What
Multiple vulnerabilities allow a remote attacker to conduct a Denial of Service attack.
Who is affected
Remote, anonymous attackers targeting CoreDNS deployments.
Urgency
Remediation is medium urgency due to the potential for Denial of Service.
Action
Monitor for updates and apply patches when available.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity
medium
Published
2026-07-10
Exploitation
Not in CISA KEV at last sync
Language
Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2271

Recent advisories for CoreDNS

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from CERT-Bund (BSI) Security Advisories