high7.1
CVE-2026-81529
Improper neutralization of delimiters in connection-URL construction allows connection-option injection in the MongoDB C# Driver.
Impact
Improper neutralization of delimiters in connection-URL construction allows connection-option injection in the MongoDB C# Driver. When an application passes untrusted text into the driver's connection-URL builder and round-trips the builder back into a client configuration, the untrusted text is serialized without neutralizing the URL/option delimiters and is then re-parsed as authoritative connection options. A low-privileged user of such an application can thereby introduce or suppress security-relevant connection settings.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mongodb | C\# Driver | from 2.10.0 before 3.11.1 |