CVE-2026-81526

Source
https://cve.org/CVERecord?id=CVE-2026-81526
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81526.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-81526
Published
2026-08-27T18:32:27.704Z
Modified
2026-08-30T03:30:21.126595194Z
Severity
  • 7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Cross-database write redirection via unvalidated dotted database name in bulk write namespaces
Details

The MongoDB Rust Driver does not neutralize special characters in a caller-supplied target identifier before embedding it in the request it sends to the server. An actor able to influence that identifier in an application using the driver may cause write operations to be applied to an unintended target within the same deployment using the application's own credentials. This may result in unauthorized modification of data belonging to another logical boundary enforced by the application.

Database specific
{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "3.0.0"
                },
                {
                    "fixed": "3.8.2"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ],
    "cna_assigner": "mongodb",
    "cwe_ids": [
        "CWE-74"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81526.json"
}
References

Affected packages

Git / github.com/mongodb/mongo-rust-driver

Affected ranges

Type
GIT
Repo
https://github.com/mongodb/mongo-rust-driver
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Database specific
Show details
{
    "source": "REFERENCES"
}

Affected versions

v0.*
v0.10.0
v0.11.0
v0.9.0
v0.9.1
v1.*
v1.0.0
v1.1.0
v1.1.0-beta
v2.*
v2.0.0
v2.0.0-alpha
v2.0.0-alpha.1
v2.0.0-beta
v2.0.0-beta.1
v2.0.0-beta.2
v2.0.0-beta.3
v2.3.0-beta
v3.*
v3.2.0
v3.3.0
v3.4.0
v3.5.0
v3.6.0
v3.7.0
v3.8.0
v3.8.1

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81526.json"