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TI-2023-11374 Aliases CVE-2023-26150GHSA-2894-qcqf-g23g

Improper authentication in asyncua

Priority HIGH 72CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-287.

Summary

Versions of the package asyncua before 0.9.96 are vulnerable to Improper Authentication such that it is possible to access Address Space without encryption and authentication. **Note:** This issue is a result of missing checks for services that require an active session.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0052 44th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed asyncua: 0.9.96asyncua (PyPI): 0.9.96

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—asyncuabefore 0.9.960.9.96Patch availableCNA
—asyncua (PyPI)before 0.9.960.9.96Patch availableGHSA-2894-qcqf-g23g
  • asyncua Vendor— Affected before 0.9.96 Fixed in 0.9.96 Patch available CNA
  • asyncua (PyPI) Vendor— Affected before 0.9.96 Fixed in 0.9.96 Patch available GHSA-2894-qcqf-g23g

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:freeopcua:opcua-asyncio:*:*:*:*:*:python:*:*before 0.9.96VulnerableFreeopcua
  • cpe:2.3:a:freeopcua:opcua-asyncio:*:*:*:*:*:python:*:* Versions before 0.9.96 Vulnerable ·Freeopcua

Remediation

  • Fix · CNA asyncua Fixed in 0.9.96
  • Fix · GHSA-2894-qcqf-g23g asyncua (PyPI) Fixed in 0.9.96 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    asyncua 0.9.96

    2 records Highest priority Priority HIGH 2 HIGH

    Other records, highest priority first

    • TI-2023-11375 Uncontrolled resource consumption in asyncuaPriority HIGH 72
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-26150
  2. 2026-10-03 Alias added: GHSA-2894-qcqf-g23g

References

Exploit 2

Patch 3

Advisory 1

Other 3

  • TI-2023-11375 Uncontrolled resource consumption in asyncua CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences