Uncontrolled resource consumption in OmniSharp csharp-language-server-protocol
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
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| 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 | — | No fix listed | CNA |
- csharp-language-server-protocol VendorOmniSharp Affected 0.19.0; 0.19.1; 0.19.2; 0.19.3; 0.19.4; 0.19.5; 0.19.6 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:dotnetfoundation:c\#_language_server_protocol:*:*:*:*:*:*:*:* | before 0.19.7 | Vulnerable | Dotnetfoundation |
- cpe:2.3:a:dotnetfoundation:c\#_language_server_protocol:*:*:*:*:*:*:*:* Versions before 0.19.7 Vulnerable ·Dotnetfoundation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-4952
- 2026-10-03 Alias added: GHSA-g656-2879-jqrc
References
Sources
- CVE-2022-4952 · CVE Program
- CVE-2022-4952 · NVD
- FIRST EPSS
- GHSA-g656-2879-jqrc · GitHub Advisory Database · CC BY 4.0
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