GHSA-qcxq-75wr-5cm8
ldap3_proto has LDAP Filter stack exhaustion
GHSA-qcxq-75wr-5cm8 is a high vulnerability (CVSS 8.7) in ldap3_proto, published May 6, 2026. No source lists public exploit code. Fixed in ldap3_proto 0.7.1.
- Severity
- 8.7 HighCVSS 4.0, GitHub Advisories
- Exploit chance
- UnscoredNo EPSS score yet
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
0.7.1ldap3_proto
Description
Impact
LDAP queries are not validated for depth, which can cause the parser (both PEG and ASN) to exhaust the stack. This may cause a denial of service in applications that process queries.
Workarounds
N/A
References
Related to GHSA-r5fr-9gmv-jggh
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ldap3_protocrates.io | before 0.7.1 | 0.7.1 |
What each source reports
GitHub Advisories Score used
ldap3_proto has LDAP Filter stack exhaustion
Impact
LDAP queries are not validated for depth, which can cause the parser (both PEG and ASN) to exhaust the stack. This may cause a denial of service in applications that process queries.
Workarounds
N/A
References
Related to GHSA-r5fr-9gmv-jggh
- Record
GHSA-qcxq-75wr-5cm8- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - Weakness
- CWE-674, CWE-770
- Updated
- 2026-11-02
OSV
ldap3_proto has LDAP Filter stack exhaustion
Impact
LDAP queries are not validated for depth, which can cause the parser (both PEG and ASN) to exhaust the stack. This may cause a denial of service in applications that process queries.
Workarounds
N/A
References
Related to GHSA-r5fr-9gmv-jggh
- Record
GHSA-qcxq-75wr-5cm8- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - Weakness
- CWE-674, CWE-770
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.