CVE-2026-3783

Published: Mar 11, 2026 Last Modified: Mar 12, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,3
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: low
Integrity: none
Availability: none

Description

AI Translation Available

When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer
performs a redirect to a second URL, curl could leak that token to the second
hostname under some circumstances.

If the hostname that the first request is redirected to has information in the
used .netrc file, with either of the `machine` or `default` keywords, curl
would pass on the bearer token set for the first host also to the second one.

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 6 Days)

522

Insufficiently Protected Credentials

Incomplete
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Gain Privileges Or Assume Identity
Applicable Platforms
Technologies: ICS/OT, Not Technology-Specific, Web Based
View CWE Details
Application

Curl by Haxx

Product Information
Vendor Haxx
Product Curl
Version Range Affected
From 7.33.0 (inclusive)
To 8.19.0 (exclusive)
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://curl.se/docs/CVE-2026-3783.html
https://curl.se/docs/CVE-2026-3783.html
https://curl.se/docs/CVE-2026-3783.json
https://curl.se/docs/CVE-2026-3783.json
https://hackerone.com/reports/3583983
https://hackerone.com/reports/3583983
http://www.openwall.com/lists/oss-security/2026/03/11/2
http://www.openwall.com/lists/oss-security/2026/03/11/2