CVE-2021-46823

python-ldap before 3.4.0 is vulnerable to a denial of service when ldap.schema is used for untrusted schema definitions, because of a regular expression denial of service (ReDoS) flaw in the LDAP schema parser. By sending crafted regex input, a remote authenticated attacker could exploit this vulnerability to cause a denial of service condition.

• CWE-1333

• https://exchange.xforce.ibmcloud.com/vulnerabilities/221507Third Party Advisory, VDB Entry
• https://github.com/python-ldap/python-ldap/security/advisories/GHSA-r8wq-qrxc-hmcmThird Party Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/221507Third Party Advisory, VDB Entry
• https://github.com/python-ldap/python-ldap/security/advisories/GHSA-r8wq-qrxc-hmcmThird Party Advisory

Published

Jun 18, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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