CVE-2026-42055
Multiple vulnerabilities were discoverd in Nginx, a high-performance web and reverse proxy server, which could result in remote code execution, denial of service or memory disclosure. https://security-tracker.debian.org/tracker/DSA-6374-1
CSIRTS triage
- What
- Multiple vulnerabilities in Nginx could lead to remote code execution, denial of service, or memory disclosure.
- Who is affected
- Deployments of Nginx are affected.
- Urgency
- High urgency for remediation due to the severity of the vulnerabilities.
- Action
- Apply the latest security update for Nginx.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Moderate exploitation risk3.5% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 88% of all EPSS-scored CVEs.
Advisory coverage (4)
- high[UPDATE] [high] NGINX and NGINX Plus: Multiple vulnerabilitiescert-bund · 2026-07-10
- unknownMultiple vulnerabilities in Microsoft Azure Linux (July 10, 2026)cert-fr-avis · 2026-07-10
- highDSA-6374-1 nginx - security updatedebian · 2026-06-30
- highCVE-2026-42055: NGINX ngx_http_proxy_v2_module and ngx_http_grpc_module vulnerabilitymsrc · 2026-06-09
External references
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[](https://www.csirts.com/cve/CVE-2026-42055)