CVE-2026-3784

Published: Mar 11, 2026 Last Modified: Mar 12, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,5
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: none

Description

AI Translation Available

curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a
server, even if the new request uses different credentials for the HTTP proxy.
The proper behavior is to create or use a separate connection.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0003
Percentile
0,1th
Updated

EPSS Score Trend (Last 7 Days)

305

Authentication Bypass by Primary Weakness

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Bypass Protection Mechanism
Applicable Platforms
All platforms may be affected
View CWE Details
Application

Curl by Haxx

Product Information
Vendor Haxx
Product Curl
Version Range Affected
From 7.7 (inclusive)
To 8.18.0 (exclusive)
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://curl.se/docs/CVE-2026-3784.html
https://curl.se/docs/CVE-2026-3784.html
https://curl.se/docs/CVE-2026-3784.json
https://curl.se/docs/CVE-2026-3784.json
https://hackerone.com/reports/3584903
https://hackerone.com/reports/3584903
http://www.openwall.com/lists/oss-security/2026/03/11/3
http://www.openwall.com/lists/oss-security/2026/03/11/3