[NEW] [medium] CoreDNS: Multiple vulnerabilities allow Denial of Service
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
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.
- medium[UPDATE] [medium] CoreDNS: Vulnerability allows denial of servicecert-bund · 2026-07-09
- medium[UPDATE] [medium] CoreDNS: Vulnerability allows denial of servicecert-bund · 2026-07-09
- medium[UPDATE] [medium] CoreDNS: Multiple vulnerabilitiescert-bund · 2026-07-09
- medium[UPDATE] [medium] CoreDNS: Multiple vulnerabilities allowcert-bund · 2026-07-02
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