CVE-2026-119571

Parse Server 9.7.0 before 9.10.5-alpha.10 Installation Update Misdirection via Installation ID

State: Published
Severity: 6.3 Medium
Published: Oct 30, 2026
Updated: Oct 30, 2026
Reserved: Oct 30, 2026

Description

Parse Server from 9.7.0 before 9.10.5-alpha.10 contains an authorization flaw that applies _Installation updates addressed by object ID to the installation named in the X-Parse-Installation-Id header. When protectedFieldsTriggerExempt is enabled, attackers knowing another installation's object ID can make a beforeSave trigger process that installation's protected fields while writing elsewhere.

Scores

CVSS	Score	Vector	Source
4.0	6.3 Medium	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	3.7 Low	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N	VulnCheck

Weaknesses

CWE-639 Authorization Bypass Through User-Controlled Key

Affected Products

Product	Versions
parse-serverparse-community	9.7.0 to before 9.10.5-alpha.10Affected 9.10.5-alpha.10Not affected

References

GitHub Security Advisory (GHSA-8j8q-73xx-w3m4)vendor-advisory
VulnCheck Advisory: Parse Server 9.7.0 before 9.10.5-alpha.10 Installation Update Misdirection via Installation IDthird-party-advisory

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