CVE-2022-4952
OmniSharp csharp-language-server-protocol JSON Serializer SerializerBase.cs CreateSerializerSettings resource consumption
- 3.5LowCVSS base score
- 0.89%Exploitation in 30 daysEPSS · top 40% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By VulDB
- 2 days later
· 2 days later
Published
- 13 months later
· 13 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulDBCNA (assigner) | 3.1 | Low3.5 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| VulDBCNA (assigner) | 3.0 | Low3.5 | CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| VulDBCNA (assigner) | 2.0 | Low2.7 | AV:A/AC:L/Au:S/C:N/I:N/A:P |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.89% · top 40% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.5.
Affected products
OmniSharp · csharp-language-server-protocol
- affected 0.19.0
- affected 0.19.1
- affected 0.19.2
- affected 0.19.3
- affected 0.19.4
- affected 0.19.5
- affected 0.19.6
References
References5
- https://vuldb.com/?id.234238 (opens in a new tab)vdb-entrytechnical-descriptionx_transferred
- https://vuldb.com/?ctiid.234238 (opens in a new tab)signaturepermissions-requiredx_transferred
- https://github.com/OmniSharp/csharp-language-server-protocol/pull/902 (opens in a new tab)issue-trackingx_transferred
- https://github.com/OmniSharp/csharp-language-server-protocol/commit/7fd2219f194a9ef2a8901bb131c5fa12272305ce (opens in a new tab)patchx_transferred
- https://github.com/OmniSharp/csharp-language-server-protocol/releases/tag/v0.19.7 (opens in a new tab)patchx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-52205 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-4952)Record last updated .