What is CVE-2021-41276?

CVE-2021-41276 is a medium-severity vulnerability in Enalean Tuleap, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.7/10. Published 2021-12-15.

How severe is CVE-2021-41276?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Is CVE-2021-41276 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

LDAP Injection in Enalean Tuleap

CVE-2021-41276

Tuleap is a Libre and Open Source tool for end to end traceability of application and system developments. In affected versions Tuleap does not sanitize properly the search filter built from the ldap_id attribute of a user during the daily synchronization. A malicious user could force accounts to be suspended or take over another account by forcing the update of the ldap_uid attribute. Note that the malicious user either need to have site administrator capability on the Tuleap instance or be an LDAP operator with the capability to create/modify account. The Tuleap instance needs to have the LDAP plugin activated and enabled for this issue to be exploitable. This issue has been patched in Tuleap Community Edition 13.2.99.31, Tuleap Enterprise Edition 13.1-5, and Tuleap Enterprise Edition 13.2-3.

Published 2021-12-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L.

EPSS exploit prediction

EPSS: 0.015 (74.3th percentile), scored 2026-10-19.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: +0.000

Affected products

Enalean Tuleap — versions < 13.2.99.31, >= 13.1-1, < 13.1-5, >= 13.2-1, < 13.2-3

Weakness classification (CWE)

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

github.com/Enalean/tuleap/security/advisories/GHSA-887w-pv2r-x8pm (Third Party Advisory)
github.com/Enalean/tuleap/commit/bd47f29847fcd6a68d359bc8aefb8749bb8a1b7c (Patch, Third Party Advisory)
tuleap.net/plugins/git/tuleap/tuleap/stable (Patch, Vendor Advisory)
tuleap.net/plugins/tracker/ (Patch, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2021-41276?: CVE-2021-41276 is a medium-severity vulnerability in Enalean Tuleap, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.7/10. Published 2021-12-15.
How severe is CVE-2021-41276?: Medium severity. CVSS v3 base score is 6.7 out of 10.
Is CVE-2021-41276 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.