VDB-413395 · CVE-2026-105163 · GHSA-mf7q-r4rv-jv94

crossplane crossplane-runtime up to 2.2.2/2.3.2 ImageConfig pkg/xpkg/client.go Get toctou

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	1.60-

Summaryinfo

A vulnerability has been found in crossplane crossplane-runtime up to 2.2.2/2.3.2 and classified as problematic. This issue affects the function Get of the file pkg/xpkg/client.go of the component ImageConfig. This manipulation causes toctou. This vulnerability is registered as CVE-2026-105163. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in crossplane crossplane-runtime up to 2.2.2/2.3.2. It has been declared as problematic. Affected by this vulnerability is the function Get of the file pkg/xpkg/client.go of the component ImageConfig. 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 integrity.

The weakness was published by bugbunny-research and tonghuaroot as GHSA-mf7q-r4rv-jv94. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-105163. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2.2.3, 2.3.3 or 2.4.0-rc.1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch bee99c6cd6ca81878acca2940a2f0a02169fc208 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-92128). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

crossplane

Name

crossplane-runtime

Version

License

open-source

Website

Product: https://github.com/crossplane/crossplane-runtime/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: crossplane-runtime 2.2.3/2.3.3/2.4.0-rc.1
Patch: bee99c6cd6ca81878acca2940a2f0a02169fc208

Timelineinfo

10/04/2026 Advisory disclosed
10/04/2026 +0 days VulDB entry created
10/05/2026 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-mf7q-r4rv-jv94
Researcher: bugbunny-research, tonghuaroot
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-105163 (🔒)
GCVE (CVE): GCVE-0-2026-105163
GCVE (VulDB): GCVE-100-413395
EUVD: 🔒

Entryinfo

Created: 10/04/2026 09:33
Updated: 10/05/2026 03:27
Changes: 10/04/2026 09:33 (61), 10/05/2026 03:27 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.