CVE-2026-21880

Name: CVE-2026-21880
Creator: NVD / NIST
Published: 2026-01-08T02:15:53.65+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.35%

Last modified Jun 17, 2026

CVE-2026-21880 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Kanboard is project management software focused on Kanban methodology. Versions 1.2.48 and below have an LDAP Injection vulnerability in the LDAP authentication mechanism. EPSS estimates a 0.35% chance of exploitation in the next 30 days.

Description

Kanboard is project management software focused on Kanban methodology. Versions 1.2.48 and below have an LDAP Injection vulnerability in the LDAP authentication mechanism. User-supplied input is directly substituted into LDAP search filters without proper sanitization, allowing attackers to enumerate all LDAP users, discover sensitive user attributes, and perform targeted attacks against specific accounts. This issue is fixed in version 1.2.49.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.35%

27.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Kanboard	Kanboard	< 1.2.49

References

https://github.com/kanboard/kanboard/commit/dd374079f7c2d1dab74c1680960e684ff8668586Patch
https://github.com/kanboard/kanboard/releases/tag/v1.2.49Release Notes
https://github.com/kanboard/kanboard/security/advisories/GHSA-v66r-m28r-wmq7Exploit, Vendor Advisory
https://github.com/kanboard/kanboard/security/advisories/GHSA-v66r-m28r-wmq7Exploit, Vendor Advisory

Timeline

Published: Jan 8, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-21880?

How severe is CVE-2026-21880?

CVE-2026-21880 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.

How do I fix CVE-2026-21880?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-21880?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST