SUSE openSUSE Tumbleweed prior 2.0+git.1600444747.83b3644-3.1 csync2 toctou

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in SUSE openSUSE Tumbleweed. This affects an unknown part of the component csync2. Executing a manipulation can lead to toctou. This vulnerability appears as CVE-2026-41051. The attack requires local access. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in SUSE openSUSE Tumbleweed. It has been declared as problematic. This vulnerability affects an unknown code block of the component csync2. The manipulation with an unknown input leads to a toctou vulnerability. The CWE definition for the vulnerability is CWE-367. The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state. As an impact it is known to affect availability. CVE summarizes:

csync2 uses insecure temporary directories when compiled with C99 or later, allowing for TOCTOU style attacks on the temporary directories.

The weakness was presented by Wolfgang Frisch. The advisory is shared for download at bugzilla.suse.com. This vulnerability was named CVE-2026-41051 since 04/16/2026. The exploitation appears to be easy. The attack needs to be approached locally. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 315100 (Linux Distros Unpatched Vulnerability : CVE-2026-41051), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.0+git.1600444747.83b3644-3.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (315100). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.0
CNA Vector (suse): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Toctou
CWE: CWE-367 / CWE-362
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 315100
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-41051

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: openSUSE Tumbleweed 2.0+git.1600444747.83b3644-3.1

Timelineinfo

04/16/2026 CVE reserved
05/13/2026 +27 days Advisory disclosed
05/13/2026 +0 days VulDB entry created
05/17/2026 +4 days VulDB entry last update

Sourcesinfo

Vendor: suse.com

Advisory: bugzilla.suse.com
Researcher: Wolfgang Frisch
Status: Confirmed

CVE: CVE-2026-41051 (🔒)
GCVE (CVE): GCVE-0-2026-41051
GCVE (VulDB): GCVE-100-363508

Entryinfo

Created: 05/13/2026 12:21
Updated: 05/17/2026 22:10
Changes: 05/13/2026 12:21 (75), 05/17/2026 22:10 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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