---
schema_version: '1.0'
id: security-20260705-b2753c
url: https://osv.dev/vulnerability/CURL-CVE-2026-8458
url_hash: b2753c7c282fc290563c9fefc61fcdfccc0c0df1247b97be65965d3f7044dd69
canonical_url: https://osv.dev/vulnerability/CURL-CVE-2026-8458
source: osv:osv
category: security/library
category_raw: cve/library
region: null
tags:
- cve
- CVE-2026-8458
- CURL-CVE-2026-8458
- 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: 872cb392671e663d04e637cb9281e02c4ff19868b3a68d64174a1dc1db01bdf8
license_note: full
summary: wrong reuse for different services
summary_source: rss
summary_en: wrong reuse for different services
entities:
- name: GitHub
  type: organization
- name: FORZA STYLE
  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-2026-8458: wrong reuse for different services'
---

# CVE-2026-8458: wrong reuse for different services

## TL;DR
wrong reuse for different services

## Key Points
- cve / CVE-2026-8458 / CURL-CVE-2026-8458 / severity:Low / https://github.com/curl/curl / GIT

## Details
**Severity:** Low
**Advisory:** CURL-CVE-2026-8458 (CVE-2026-8458)

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

**Details:**
libcurl might in some circumstances reuse the wrong connection when asked to
do Negotiate-authenticated ones, even when they are set to use different
"services".

libcurl features a pool of recent connections so that subsequent requests can
reuse an existing connection to avoid overhead.

When reusing a connection a range of criteria must be met. Due to a logical
error in the code, a request that was issued by an application could
wrongfully reuse an existing connection to the same server that was
authenticated using different services.

_Data: OSV.dev (upstream: osv) — https://osv.dev/vulnerability/CURL-CVE-2026-8458_

## Source
元記事: [CVE-2026-8458: wrong reuse for different services](https://osv.dev/vulnerability/CURL-CVE-2026-8458) — published 2026-06-24T08:00:00Z