CVE-2026-25560: WeKan < 8.19 LDAP Authentication Filter Injection

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-02-07 · updated 2026-07-14
Weakness: CWE-90

Description

WeKan versions prior to 8.19 contain an LDAP filter injection vulnerability in LDAP authentication. User-supplied username input is incorporated into LDAP search filters and DN-related values without adequate escaping, allowing an attacker to manipulate LDAP queries during authentication.

Affected products

WeKan: before 8.19 — fixed in 8.19

How to fix

Upgrade to a fixed version: WeKan 8.19. Check the vendor advisory for mitigations.

References

https://github.com/wekan/wekan/commit/0b0e16c3eae28bbf453d33a81a9c58ce7db6d5bb
https://wekan.fi/
https://www.vulncheck.com/advisories/wekan-ldap-authentication-filter-injection

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