# CVE-2026-126392: Parse Server 9.10.6-alpha.1 before 9.10.8-alpha.1 Information Disclosure via Dot Notation Update

Status: published. Published: 2026-11-13. Updated: 2026-11-13.

Parse Server from 9.10.6-alpha.1 before 9.10.8-alpha.1 contains an information disclosure vulnerability that allows clients with write but not read access to learn whether fields are stored on MongoDB. Attackers can send updates with dot notation operations on top-level fields and observe internal server errors versus success responses to infer field existence.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- parse-community / parse-server (parse-server): ≥ 9.10.6-alpha.1; < 9.10.8-alpha.1 (affected, semver); 9.10.8-alpha.1 (unaffected, semver). Source: CNA: VulnCheck
- parse-community / parse-server (parse-server): ≥ 8.6.109; < 8.6.118 (affected, semver); 8.6.118 (unaffected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 2.3 (low); CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 3.1 (low); CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N; source: CNA: VulnCheck

- CVSS 4.0: 2.3 (low); CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 3.1 (low); CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: 0.28% as of 2026-11-13; percentile 21.09%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-203

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/parse-community/parse-server/security/advisories/GHSA-4m87-fqwv-2m8v (CNA: VulnCheck; vendor-advisory)

- https://www.vulncheck.com/advisories/parse-server-9.10.6-alpha.1-before-9.10.8-alpha.1-information-disclosure-via-dot-notation-update (CNA: VulnCheck; third-party-advisory)

- https://github.com/parse-community/parse-server/security/advisories/GHSA-4m87-fqwv-2m8v (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/parse-server-9.10.6-alpha.1-before-9.10.8-alpha.1-information-disclosure-via-dot-notation-update (disclosure@vulncheck.com)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-126392; retrieved 2026-11-13; source updated 2026-11-13

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-126392; retrieved 2026-11-13; source updated 2026-11-13

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-126392; retrieved 2026-11-13; source updated Not reported

Revision: 1b426d0d7b86d87811fd2d20fb6b829deec426a36de8c6a9ccbe8d8c342f1253

Canonical: https://y2.dev/cve/CVE-2026-126392

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.