PYSEC-2026-912
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/python-ldap/PYSEC-2026-912.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-912
- Aliases
- Published
- 2026-07-06T08:03:30.875950Z
- Modified
- 2026-07-08T06:49:50.975651370Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- Denial of Service in python-ldap
- Details
-
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.
- References
-
- https://github.com/python-ldap/python-ldap/security/advisories/GHSA-r8wq-qrxc-hmcm
- https://nvd.nist.gov/vuln/detail/CVE-2021-46823
- https://exchange.xforce.ibmcloud.com/vulnerabilities/221507
- https://github.com/python-ldap/python-ldap
- https://pypi.org/project/python-ldap
- https://github.com/advisories/GHSA-qfr5-wjpw-q4c4
Affected packages
PyPI / python-ldap
Package
- Name
- python-ldap
- View open source insights on deps.dev
- Purl
- pkg:pypi/python-ldap
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed3.4.0
Affected versions
2.*
2.3.13
2.4.0
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.4.8
2.4.9
2.4.10
2.4.12
2.4.13
2.4.14
2.4.15
2.4.16
2.4.17
2.4.18
2.4.19
2.4.20
2.4.21
2.4.22
2.4.25
2.4.26
2.4.27
2.4.28
2.4.29
2.4.30
2.4.31
2.4.32
2.4.33
2.4.35
2.4.36
2.4.37
2.4.38
2.4.39
2.4.40
2.4.41
2.4.42
2.4.43
2.4.44
2.4.45
2.5.1
2.5.2
3.*
3.0.0b1
3.0.0b2
3.0.0b3
3.0.0b4
3.0.0
3.1.0
3.2.0
3.3.0
3.3.1