How severe is GHSA-qcxq-75wr-5cm8?

No CVSS score has been assigned to GHSA-qcxq-75wr-5cm8 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-qcxq-75wr-5cm8?

GHSA-qcxq-75wr-5cm8 affects the following packages: ldap3_proto (crates.io). Ecosystems affected: crates.io.

How do I fix GHSA-qcxq-75wr-5cm8?

Update ldap3_proto to 0.7.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-qcxq-75wr-5cm8 is resolved across your whole dependency graph.

How do I detect GHSA-qcxq-75wr-5cm8 in my crates.io dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ldap3_proto, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-qcxq-75wr-5cm8 if there is no patch (or I can't update yet)?

Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Is GHSA-qcxq-75wr-5cm8 actively exploited in the wild?

No public exploit code has been indexed for GHSA-qcxq-75wr-5cm8 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

When was GHSA-qcxq-75wr-5cm8 published, and has it been updated?

GHSA-qcxq-75wr-5cm8 was published on May 6, 2026 and was last updated on August 14, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🦀 crates.io

Not in CISA KEV

ldap3_proto has LDAP Filter stack exhaustionGHSA-qcxq-75wr-5cm8

GHSA-qcxq-75wr-5cm8 is a security vulnerability in ldap3_proto. A fix is available for ldap3_proto — see the affected versions and patch details below.

Published

May 6, 2026

Updated

Aug 14, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Aug 14, 2026 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

🦀ldap3_proto

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects crates.io packages — download data is not available via public APIs for these ecosystems.

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

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🦀crates.io	`ldap3_proto`	all versions	0.7.1`cargo update -p ldap3_proto --precise 0.7.1`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ldap3_proto, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update ldap3_proto to 0.7.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-qcxq-75wr-5cm8 is resolved across your whole dependency graph.
Workarounds
Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

### 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

O3 Security · Impact-Aware SCA

Is GHSA-qcxq-75wr-5cm8 in your dependencies?

Find it across crates.io, including transitive dependencies.

Scan my dependencies How O3 SCA works

ldap3_proto has LDAP Filter stack exhaustionGHSA-qcxq-75wr-5cm8

Real-World Exposure

Description

Impact

Workarounds

References

Affected Packages

Detection & mitigation playbook

Detect

Fix

Workarounds

Frequently Asked Questions

Is GHSA-qcxq-75wr-5cm8 in your dependencies?