CVE-2026-86410

A flaw in the curl command line tool's logic makes it only set SSH host verification options when interacting directly using SFTP or SCP, and not as a result of following a redirect.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://curl.se/docs/CVE-2026-86410.html
https://curl.se/docs/CVE-2026-86410.json
https://hackerone.com/reports/3973176
https://hackerone.com/reports/3973176

Configurations

No configuration.

History

29 Oct 2026, 19:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.1
References	~~() https://hackerone.com/reports/3973176 -~~	() https://hackerone.com/reports/3973176 -
CWE		CWE-297

20 Oct 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-20 20:17

Updated : 2026-10-29 19:17

NVD link : CVE-2026-86410

Mitre link : CVE-2026-86410

CVE.ORG link : CVE-2026-86410

JSON object : View

Products Affected

No product.

CWE

CWE-297

Improper Validation of Certificate with Host Mismatch

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only set SSH host\nverification options when interacting directly using SFTP or SCP, and not as a\nresult of following a redirect."}], "lastModified": "2026-10-29T19:17:27.330", "sourceIdentifier": "2499f714-1537-4658-8207-48ae4bb9eae9"}