[UPDATE] [high] NGINX and NGINX Plus: Multiple vulnerabilities

highCVE-2026-11311 CVE-2026-32682 CVE-2026-42055 CVE-2026-42530 CVE-2026-48142 CVE-2026-50107

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

vendor: NGINX product: NGINX and NGINX Plus Privilege escalation Code injection Information disclosure Denial of service

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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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-08-25
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-2026-1995

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-113110.57% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 44% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-326820.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 22% of all EPSS-scored CVEs.
Moderate exploitation riskCVE-2026-420554.0% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 90% of all EPSS-scored CVEs.
Moderate exploitation riskCVE-2026-425303.7% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 89% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-481420.68% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 50% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-501070.49% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-11311	coverage & exploitation status	NVD · CVE.org
CVE-2026-32682	coverage & exploitation status	NVD · CVE.org
CVE-2026-42055	coverage & exploitation status	NVD · CVE.org
CVE-2026-42530	coverage & exploitation status	NVD · CVE.org
CVE-2026-48142	coverage & exploitation status	NVD · CVE.org
CVE-2026-50107	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

unknownMultiple vulnerabilities in Microsoft Azure Linux (July 10, 2026)cert-fr-avis
highDSA-6374-1 nginx - security updatedebian
highCVE-2026-42055: NGINX ngx_http_proxy_v2_module and ngx_http_grpc_module vulnerabilitymsrc
mediumCVE-2026-48142: NGINX ngx_http_charset_module vulnerabilitymsrc