TI-2023-11375 Aliases CVE-2023-26151 GHSA-gfvq-mxw3-mfq3

Uncontrolled resource consumption in asyncua

HIGH 72CWE-400Published 2023-10-03 · Updated 2024-09-20

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-400.

Summary

Versions of the package asyncua before 0.9.96 are vulnerable to Denial of Service (DoS) such that an attacker can send a malformed packet and as a result, the server will enter into an infinite loop and consume excessive memory.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.01175 67th 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

Vendor	Product	Affected versions	Fixed in	Status	Source
—	asyncua	before 0.9.96	0.9.96	Patch available	CNA
—	asyncua (PyPI)	before 0.9.96	0.9.96	Patch available	GHSA-gfvq-mxw3-mfq3

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-gfvq-mxw3-mfq3

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:freeopcua:opcua-asyncio::::::python::*	before 0.9.96	Vulnerable	Freeopcua

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-gfvq-mxw3-mfq3 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 · 2023-10-03
asyncua 0.9.96
2 records Highest priority Priority HIGH 2 HIGH
Other records, highest priority first
- TI-2023-11374 Improper authentication in asyncuaPriority HIGH 72
Show all 2 records →

Timeline

2026-10-02 Threatist record created from CVE-2023-26151
2026-10-03 Alias added: GHSA-gfvq-mxw3-mfq3

References

Exploit 2

Patch 2

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2023-26151

Other 3

TI-2023-11374 Improper authentication 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