---
schema_version: '1.0'
id: security-20260705-3b52df
url: https://osv.dev/vulnerability/CURL-CVE-2026-8286
url_hash: 3b52df80112f2e09c0a4b81e7349a7e98e031d5388a91a4b2fb6cc5476929abf
canonical_url: https://osv.dev/vulnerability/CURL-CVE-2026-8286
source: osv:osv
category: security/library
category_raw: cve/library
region: null
tags:
- cve
- CVE-2026-8286
- CURL-CVE-2026-8286
- severity:Low
- https://github.com/curl/curl
- GIT
lang: en
published_at: '2026-06-24T08:00:00Z'
fetched_at: '2026-07-05T15:34:34Z'
updated_at: '2026-07-05T15:37:47Z'
status: published
content_hash: f252eed63407dba294430b3234b11a38401e03259b94c08be071730f2525266c
license_note: full
summary: wrong STARTTLS connection reuse
summary_source: rss
summary_en: wrong STARTTLS connection reuse
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-2026-8286: wrong STARTTLS connection reuse'
---

# CVE-2026-8286: wrong STARTTLS connection reuse

## TL;DR
wrong STARTTLS connection reuse

## Key Points
- cve / CVE-2026-8286 / CURL-CVE-2026-8286 / severity:Low / https://github.com/curl/curl / GIT

## Details
**Severity:** Low
**Advisory:** CURL-CVE-2026-8286 (CVE-2026-8286)

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

**Details:**
A vulnerability exists where a new transfer that uses STARTTLS to upgrade the
connection might reuse an existing live connection even though the TLS
configuration mismatches so it should not.

_Data: OSV.dev (upstream: osv) — https://osv.dev/vulnerability/CURL-CVE-2026-8286_

## Source
元記事: [CVE-2026-8286: wrong STARTTLS connection reuse](https://osv.dev/vulnerability/CURL-CVE-2026-8286) — published 2026-06-24T08:00:00Z