WeKan up to 8.34.x URL url schema server-side request forgery

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in WeKan up to 8.34.x and classified as critical. This vulnerability affects unknown code of the component URL Handler. The manipulation of the argument url schema results in server-side request forgery. This vulnerability is identified as CVE-2026-41455. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in WeKan up to 8.34.x. Affected is an unknown code of the component URL Handler. The manipulation of the argument url schema with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

WeKan before 8.35 contains a server-side request forgery vulnerability in webhook integration URL handling where the URL scheme field accepts any string without protocol restriction or destination validation. Attackers who can create or modify integrations can set webhook URLs to internal network addresses, causing the server to issue HTTP POST requests to attacker-controlled internal targets with full board event payloads, and can additionally exploit response handling to overwrite arbitrary comment text without authorization checks.

The weakness was released by Rodolphe Ghio. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-41455 since 04/20/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available.

Upgrading to version 8.35 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 2cd702f48df2b8aef0e7381685f8e089986a18a4 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.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

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: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.5
CNA Vector (VulnCheck): 🔒

CVSSv2info

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

Exploitinginfo

Class: Server-side request forgery
CWE: CWE-918
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: WeKan 8.35
Patch: 2cd702f48df2b8aef0e7381685f8e089986a18a4

Timelineinfo

04/20/2026 CVE reserved
04/23/2026 +3 days Advisory disclosed
04/23/2026 +0 days VulDB entry created
05/27/2026 +34 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Researcher: Rodolphe Ghio
Status: Confirmed

CVE: CVE-2026-41455 (🔒)
GCVE (CVE): GCVE-0-2026-41455
GCVE (VulDB): GCVE-100-359076

Entryinfo

Created: 04/23/2026 06:50
Updated: 05/27/2026 07:14
Changes: 04/23/2026 06:50 (80), 05/27/2026 07:14 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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