---
schema_version: '1.0'
id: security-20260705-5a5b8b
url: https://osv.dev/vulnerability/DEBIAN-CVE-2026-40701
url_hash: 5a5b8b1f3b2facfa6df1606779bada887a75f45596a91bf65de653e8104a9cb0
canonical_url: https://osv.dev/vulnerability/DEBIAN-CVE-2026-40701
source: osv:debian
category: security/os
category_raw: cve/os
region: null
tags:
- cve
- DEBIAN-CVE-2026-40701
- severity:CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- nginx
- Debian
lang: en
published_at: '2026-05-13T16:16:43Z'
fetched_at: '2026-07-05T15:34:33Z'
updated_at: '2026-07-05T15:35:24Z'
status: published
content_hash: ab7758e0fa9410d8d2ced672694ff7d23229d20d98a0288c39b305201bfa75f1
license_note: full
summary: 'NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssl_module module
  when the ssl_verify_client directive is set to "on" or "optional," and the ssl_ocsp directive
  is set to "on" or the leaf parameters are configured with a resolver. With this
  configuration, an '
summary_source: rss
summary_en: 'NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssl_module module
  when the ssl_verify_client directive is set to "on" or "optional," and the ssl_ocsp directive
  is set to "on" or the leaf parameters are configured with a resolver. With this
  configuration, an '
entities: []
key_facts: []
related: []
related_auto: []
title: DEBIAN-CVE-2026-40701 — nginx
---

# DEBIAN-CVE-2026-40701 — nginx

## TL;DR
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssl_module module when the ssl_verify_client directive is set to "on" or "optional," and the ssl_ocsp directive is set to "on" or the leaf parameters are configured with a resolver. With this configuration, an 

## Key Points
- cve / DEBIAN-CVE-2026-40701 / severity:CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X / nginx / Debian

## Details
**Severity:** CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
**Advisory:** DEBIAN-CVE-2026-40701

**Affected (your watchlist):**
- `Debian:nginx` 1.22.1-9+deb12u1 → no fixed version listed [proxmox]

**Details:**
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssl_module module when the ssl_verify_client directive is set to "on" or "optional," and the ssl_ocsp directive is set to "on" or the leaf parameters are configured with a resolver. With this configuration, an unauthenticated attacker can send requests along with conditions beyond its control that may cause a heap-use-after-free error in the NGINX worker process. This vulnerability may result in limited modification of data or the NGINX worker process restarting.     Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

**References:**
- https://security-tracker.debian.org/tracker/CVE-2026-40701

_Data: OSV.dev (upstream: debian) — https://osv.dev/vulnerability/DEBIAN-CVE-2026-40701_

## Source
元記事: [DEBIAN-CVE-2026-40701 — nginx](https://osv.dev/vulnerability/DEBIAN-CVE-2026-40701) — published 2026-05-13T16:16:43Z