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SUSE SLED15 / SLES15 Security Update : curl (SUSE-SU-2026:0903-1)

medium Nessus Plugin ID 302846

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0903-1 advisory.

 - CVE-2026-1965: bad reuse of HTTP Negotiate connection (bsc#1259362).
 - CVE-2026-3783: token leak with redirect and netrc (bsc#1259363).
 - CVE-2026-3784: wrong proxy connection reuse with credentials (bsc#1259364).
 - CVE-2026-3805: use after free in SMB connection reuse (bsc#1259365).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected curl, libcurl-devel, libcurl4 and / or libcurl4-32bit packages.

See Also

https://bugzilla.suse.com/1259362

https://bugzilla.suse.com/1259363

https://bugzilla.suse.com/1259364

https://bugzilla.suse.com/1259365

http://www.nessus.org/u?214d0b24

https://www.suse.com/security/cve/CVE-2026-1965

https://www.suse.com/security/cve/CVE-2026-3783

https://www.suse.com/security/cve/CVE-2026-3784

https://www.suse.com/security/cve/CVE-2026-3805

Plugin Details

Severity: Medium

ID: 302846

File Name: suse_SU-2026-0903-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 3/18/2026

Updated: 3/18/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:C/A:N

CVSS Score Source: CVE-2026-1965

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2026-3784

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:curl, p-cpe:/a:novell:suse_linux:libcurl4, p-cpe:/a:novell:suse_linux:libcurl4-32bit, p-cpe:/a:novell:suse_linux:libcurl-devel, cpe:/o:novell:suse_linux:15

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/17/2026

Vulnerability Publication Date: 3/11/2026

Reference Information

CVE: CVE-2026-1965, CVE-2026-3783, CVE-2026-3784, CVE-2026-3805

IAVA: 2026-A-0237

SuSE: SUSE-SU-2026:0903-1