---
schema_version: '1.0'
id: security-20260705-e35883
url: https://osv.dev/vulnerability/CURL-CVE-2025-4947
url_hash: e3588322bfde2623034e82b63754ccdcb99ba44c88d7fd5c817b280b961ae46b
canonical_url: https://osv.dev/vulnerability/CURL-CVE-2025-4947
source: osv:osv
category: security/library
category_raw: cve/library
region: null
tags:
- cve
- CVE-2025-4947
- CURL-CVE-2025-4947
- severity:Medium
- https://github.com/curl/curl
- GIT
lang: en
published_at: '2025-05-28T08:00:00Z'
fetched_at: '2026-07-05T15:34:34Z'
updated_at: '2026-07-05T15:37:03Z'
status: published
content_hash: 6b3d80bc80e3fe72249399bda9fa737e1daf525d0e6ccb87fd3ed04ce2375f0f
license_note: full
summary: QUIC certificate check skip with wolfSSL
summary_source: rss
summary_en: QUIC certificate check skip with wolfSSL
entities:
- name: GitHub
  type: organization
key_facts: []
related: []
related_auto:
- name: Anonymous
  type: organization
  weight: 1.0
- name: AirPods
  type: artifact
  weight: 1.0
- name: Claude Code
  type: artifact
  weight: 1.0
- name: セッション漏洩
  type: event
  weight: 1.0
- name: local-llm
  type: content
  weight: 1.0
title: 'CVE-2025-4947: QUIC certificate check skip with wolfSSL'
---

# CVE-2025-4947: QUIC certificate check skip with wolfSSL

## TL;DR
QUIC certificate check skip with wolfSSL

## Key Points
- cve / CVE-2025-4947 / CURL-CVE-2025-4947 / severity:Medium / https://github.com/curl/curl / GIT

## Details
**Severity:** Medium
**Advisory:** CURL-CVE-2025-4947 (CVE-2025-4947)

**Affected (your watchlist):**
- `GIT:https://github.com/curl/curl` curl-8_9_1 → no fixed version listed [mac]

**Details:**
libcurl accidentally skips the certificate verification for QUIC connections
when connecting to a host specified as an IP address in the URL. Therefore, it
does not detect impostors or man-in-the-middle attacks.

_Data: OSV.dev (upstream: osv) — https://osv.dev/vulnerability/CURL-CVE-2025-4947_

## Source
元記事: [CVE-2025-4947: QUIC certificate check skip with wolfSSL](https://osv.dev/vulnerability/CURL-CVE-2025-4947) — published 2025-05-28T08:00:00Z