CVEvulnerability
CVE-2026-3784
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2026-03-11
- Last modified
- 2026-09-15
- Assigner
- 2499f714-1537-4658-8207-48ae4bb9eae9
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- Weaknesses
- CWE-305
Description
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.
Affected configurations
• haxx curl (>= 7.7 < 8.18.0)
Related
Weakness · CWE (1)
- CWE-305 Authentication Bypass by Primary Weakness weakness
References
- https://curl.se/docs/CVE-2026-3784.html Patch, Vendor Advisory
- https://curl.se/docs/CVE-2026-3784.json Vendor Advisory
- https://hackerone.com/reports/3584903 Exploit, Issue Tracking, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2026/03/11/3 Mailing List, Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html cert-portal.siemens.com