TI-2026-01564 Aliases CVE-2026-1898 GHSA-ccch-v5jp-xrrh

WeKan LDAP User Sync syncUser.js SyncLDAPBleed access control

LOW 24CWE-266Published 2026-02-05 · Updated 2026-02-23

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Privilege escalation, Security bypass
Confidentiality · integrity · availability: Low · Low · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-266 and CWE-284.

Summary

A vulnerability was determined in WeKan up to 8.20. This affects an unknown part of the file packages/wekan-ldap/server/syncUser.js of the component LDAP User Sync. This manipulation causes improper access controls. It is possible to initiate the attack remotely. Upgrading to version 8.21 is able to mitigate this issue. Patch name: 146905a459106b5d00b4f09453a6554255e6965a. You should upgrade the affected component.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00295 22nd percentileScored 2026-11-07

Fix Fixed WeKan: 8.21

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	WeKan	8.0; 8.1; 8.2; 8.3; 8.4; 8.5; 8.6; 8.7; 8.8; 8.9; 8.10; 8.11; 8.12; 8.13; 8.14; 8.15; 8.16; 8.17; 8.18; 8.19; 8.20	8.21	Patch available	CNA

WeKan Vendor— Affected 8.0; 8.1; 8.2; 8.3; 8.4; 8.5; 8.6; 8.7; 8.8; 8.9; 8.10; 8.11; 8.12; 8.13; 8.14; 8.15; 8.16; 8.17; 8.18; 8.19; 8.20 Fixed in 8.21 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:wekan_project:wekan::::::::	before 8.21	Vulnerable	wekan

cpe:2.3:a:wekan_project:wekan:*:*:*:*:*:*:*:* Versions before 8.21 Vulnerable ·wekan

Remediation

Fix · CNA WeKan Fixed in 8.21

Timeline

2026-10-02 Threatist record created from CVE-2026-1898
2026-10-03 Alias added: GHSA-ccch-v5jp-xrrh

References

Patch 2

Other 1

https://github.com/wekan/wekan/

TI-2026-01855 WeKan Activity Publication activities.js LinkedBoardActivitiesBleed information disclosure CVSS 4.0MEDIUM 6.9
TI-2023-13025 A stored cross-site scripting (Stored XSS) vulnerability in file preview in WeKan before… CVSS 3.1MEDIUM 5.4
TI-2026-20667 WeKan < 8.19 LDAP Authentication Filter Injection CVSS 4.0HIGH 8.7
TI-2026-23675 Wekan Exposes All Global Webhook Integrations through globalwebhooks Publication CVSS 4.0HIGH 8.7
TI-2026-23673 Wekan Vulnerable to SSRF through Lack of Validation or Filtering in Attachment URL Loading CVSS 4.0CRITICAL 9.3
TI-2026-23672 Wekan has Cross-Board IDOR in Custom Fields Update Endpoints CVSS 4.0CRITICAL 9.3

See all 38 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences