CVE-2026-86410

redirect to SFTP or SCP bypasses host verification

HIGH
8.1
CVSS Score
Published: October 20, 2026 at 07:59 PM UTC
Updated: October 29, 2026 at 07:17 PM UTC
1 product affected across 1 vendorCurl

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Severity
HIGH8.1
Exploit prediction
EPSS 0.8%
SSVC
PoC

Description

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.

Affected

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.1HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-297

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