CVE-2026-5773

Publication date 29 April 2026

Last updated 29 April 2026


Ubuntu priority

Description

libcurl might in some circumstances reuse the wrong connection for SMB(S) transfers.

Read the notes from the security team

Why is this CVE low priority?

curl is dropping support for SMB later in 2026 and only supports SMB version 1

Learn more about Ubuntu priority

Mitigation

Avoid using SMB

Status

Package Ubuntu Release Status
curl 26.04 LTS resolute
Needs evaluation
25.10 questing
Vulnerable
24.04 LTS noble
Vulnerable
22.04 LTS jammy
Vulnerable
20.04 LTS focal
Vulnerable
18.04 LTS bionic
Vulnerable
16.04 LTS xenial
Vulnerable
14.04 LTS trusty
Not affected

Notes


ebarretto

Introduced-in: https://github.com/curl/curl/commit/aec2e865f0

Patch details

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

Package Patch details
curl

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