{"apiVersion":"1.0","identifier":"CVE-2026-81528","description":"A MongoDB C# driver document-replacement code path omits the element-name/shape validation that the equivalent write paths apply, so a value supplied as a replacement is forwarded to the server without neutralization of query-language special elements. An application that passes untrusted, loosely-typed input as a replacement value therefore allows that input to be interpreted by the database as update logic rather than as data, executing under the application-s own database credentials. Applications using strongly-typed document mappings are not affected.","publishedAt":"2026-08-27T20:18:51","lastModifiedAt":"2026-08-28T00:18:21","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-81528","cvssScore":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","epssProbability":0.00164,"riskScore":0.55,"affectedProduct":"MongoDB C# Driver","affectedVersions":"unknown","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-81528","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-81528","en":"https://www.redsauce.net/en/cves/CVE-2026-81528","fr":"https://www.redsauce.net/fr/cves/CVE-2026-81528","pt":"https://www.redsauce.net/pt/cves/CVE-2026-81528","de":"https://www.redsauce.net/de/cves/CVE-2026-81528","sk":"https://www.redsauce.net/sk/cves/CVE-2026-81528","el":"https://www.redsauce.net/el/cves/CVE-2026-81528"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-81528"}}