CVE-2025-15224

Publication date 6 January 2026

Last updated 9 January 2026

Ubuntu priority

Cvss 3 Severity Score

Description

When doing SSH-based transfers using either SCP or SFTP, and asked to do public key authentication, curl would wrongly still ask and authenticate using a locally running SSH agent.

Read the notes from the security team

Why is this CVE low priority?

This is rated as being low severity by Curl developers

Learn more about Ubuntu priority

Status

Show unmaintained releases

Package	Ubuntu Release	Status
curl	25.10 questing	Not affected
	25.04 plucky	Not affected
	24.04 LTS noble	Vulnerable
	22.04 LTS jammy	Vulnerable
	20.04 LTS focal	Vulnerable
	18.04 LTS bionic	Vulnerable
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Notes

mdeslaur

only affects curl built with the libssh, not libssh2 in plucky+, libssh2 is used for builds

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
curl	Upstream: 16d5f2a

Severity score breakdown

Parameter	Value
Base score	3.1 · Low
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N