[UPDATE] [high] NGINX and NGINX Plus: Multiple vulnerabilities
An attacker can exploit multiple vulnerabilities in NGINX Plus and NGINX to conduct a denial of service attack, manipulate data, bypass security measures, and potentially execute arbitrary program code.
CSIRTS triage
- What
- Multiple vulnerabilities allow an attacker to conduct a denial of service attack, manipulate data, bypass security measures, and potentially execute arbitrary program code.
- Who is affected
- Users of NGINX and NGINX Plus.
- Urgency
- Remediation is urgent due to the high severity of the vulnerabilities and 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
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0860
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.
- Elevated exploitation riskCVE-2026-2765421.0% 30-day exploitation probability — well above the norm. Schedule remediation this cycle. Riskier than 97% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-276510.94% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 58% of all EPSS-scored CVEs.
- Moderate exploitation riskCVE-2026-277841.0% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 61% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-326470.92% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 58% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-287550.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-287530.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 18% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-27654 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-27651 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-27784 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-32647 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-28755 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-28753 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- high[NEW] [high] Splunk SOAR: Multiple vulnerabilitiescert-bund
- unknownMultiple vulnerabilities in Splunk products (20 August 2026)cert-fr-avis
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