CVE-2021-41276Network attack vector

Account takeover via unsanitized LDAP synchronization filter

Published Dec 15, 2021 · Updated Aug 4, 2024

LDAP injection in affected Tuleap versions allows remote authenticated users to suspend accounts or take over another account. Daily synchronization inserts a user-controlled ldap_id into an LDAP search filter without proper sanitization, allowing ldap_uid reassignment. Exploitation requires an enabled LDAP plugin and either Tuleap site-administrator access or LDAP account-modification privileges.

CVSS severity6.7
Medium
EPSS probability1.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

LDAP injection in affected Tuleap versions allows remote authenticated users to suspend accounts or take over another account. Daily synchronization inserts a user-controlled ldap_id into an LDAP search filter without proper sanitization, allowing ldap_uid reassignment. Exploitation requires an enabled LDAP plugin and either Tuleap site-administrator access or LDAP account-modification privileges.

The record

CVE
CVE-2021-41276
Published
Dec 15, 2021
Updated
Aug 4, 2024
Vendor
Enalean
Product
Tuleap
Classifications
CWE-74, CWE-90, T1098
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 15, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 13.1-1, < 13.1-5
  2. Affected versionversion=>= 13.2-1, < 13.2-3
  3. Affected versionversion=< 13.2.99.31

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Enalean · Tuleapversion=>= 13.1-1, < 13.1-5; version=>= 13.2-1, < 13.2-3; version=< 13.2.99.31

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.0NIST NVDAV:N/AC:M/Au:S/C:P/I:P/A:P
6.7GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-90Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
T1098Account Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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