CVE-2026-30835

Source
https://cve.org/CVERecord?id=CVE-2026-30835
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-30835.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-30835
Aliases
Published
2026-03-06T20:28:27.619Z
Modified
2026-04-10T05:41:55.073975Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Parse Server: Malformed `$regex` query leaks database error details in API response
Details

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.7 and 9.5.0-alpha.6, malformed $regex query parameter (e.g. [abc) causes the database to return a structured error object that is passed unsanitized through the API response. This leaks database internals such as error messages, error codes, code names, cluster timestamps, and topology details. The vulnerability is exploitable by any client that can send query requests, depending on the deployment's permission configuration. This issue has been patched in versions 8.6.7 and 9.5.0-alpha.6.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30835.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-209"
    ]
}
References

Affected packages

Git / github.com/parse-community/parse-server

Affected ranges

Type
GIT
Repo
https://github.com/parse-community/parse-server
Events

Affected versions

9.*
9.0.0
9.1.0
9.1.1
9.2.0
9.3.0
9.3.1
9.4.0
9.4.1
9.5.0-alpha.1
9.5.0-alpha.2
9.5.0-alpha.3
9.5.0-alpha.4
9.5.0-alpha.5

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-30835.json"