PYSEC-2026-2385
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/asyncua/PYSEC-2026-2385.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-2385
- Aliases
- Published
- 2026-07-09T16:49:51.738918Z
- Modified
- 2026-07-13T16:43:51.406907239Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- Uncontrolled Resource Consumption in asyncua and opcua
- Details
-
All versions of package opcua; all versions of package asyncua are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.
- References
-
- https://nvd.nist.gov/vuln/detail/CVE-2022-25304
- https://github.com/FreeOpcUa/python-opcua/issues/1466
- https://github.com/FreeOpcUa/opcua-asyncio/commit/01c7acf047887b62d979cd4373d370e72a4b9057
- https://github.com/FreeOpcUa/opcua-asyncio
- https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-2988731
- https://security.snyk.io/vuln/SNYK-PYTHON-OPCUA-2988730
- https://pypi.org/project/asyncua
- https://github.com/advisories/GHSA-mfpj-3qhm-976m
Affected packages
PyPI / asyncua
Package
- Name
- asyncua
- View open source insights on deps.dev
- Purl
- pkg:pypi/asyncua
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed0.9.96