CVE-2026-26017
An attacker can exploit multiple vulnerabilities in CoreDNS to bypass security measures and conduct a Denial of Service attack.
CSIRTS triage
- What
- Multiple vulnerabilities allow an attacker to bypass security measures and conduct a Denial of Service attack.
- Who is affected
- Deployments of CoreDNS are affected.
- Urgency
- Remediation is medium urgency due to the potential for Denial of Service attacks.
- Action
- Update to the latest version of CoreDNS to mitigate these vulnerabilities.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.38% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 30% of all EPSS-scored CVEs.
Advisory coverage (1)
- medium[UPDATE] [medium] CoreDNS: Multiple vulnerabilitiescert-bund · 2026-07-09
External references
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[](https://www.csirts.com/cve/CVE-2026-26017)