Vulnerability in Parse-Community Parse-Server
CVE-2026-121414
Parse Server before 8.6.110 and 9.0.0 before 9.10.6-alpha.2 fails to contain a serialization error when an object update uses a dot notation key targeting a pointer field's object identifier on a class with an afterSave trigger. Attackers, including unauthenticated clients when objects are writable without a session, can send such an update to crash the Node process.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/parse-community/parse-server/security/advisories/GHSA-wc3c-6843-q7mv (vendor-advisory)
- github.com/parse-community/parse-server/pull/10802 (issue-tracking, patch)
- github.com/parse-community/parse-server/pull/10803 (issue-tracking, patch)
- www.vulncheck.com/advisories/parse-server-before-8.6.110-and-9.0.0-before-9.10… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-121414?
- CVE-2026-121414 is a medium-severity vulnerability in Parse-Community Parse-Server, classified under CWE-248. CVSS score: 5.9/10. Published 2026-11-03.
- How severe is CVE-2026-121414?
- Medium severity. CVSS v3 base score is 5.9 out of 10.