CVE-2026-42055
An attacker can exploit multiple vulnerabilities in NGINX and NGINX Plus to manipulate data, execute arbitrary code, disclose confidential information, or trigger a denial-of-service condition.
CSIRTS triage
- What
- Multiple vulnerabilities allow an attacker to manipulate data and execute arbitrary code.
- Who is affected
- Deployments of NGINX and NGINX Plus.
- Urgency
- Remediation is high urgency due to the potential for exploitation.
- Action
- Update to the latest version of NGINX and NGINX Plus.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Moderate exploitation risk4.0% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 90% of all EPSS-scored CVEs.
Advisory coverage (4)
- high[UPDATE] [high] NGINX and NGINX Plus: Multiple vulnerabilitiescert-bund · 2026-08-25
- 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)