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CVE-2026-30965

CRITICAL
9.9
CVSS 4.0
Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.8 and 8.6.21, a vulnerability in Parse Server's query handling allows an authenticated or unauthenticated attacker to exfiltrate session tokens of other users by exploiting the redirectClassNameForKey query parameter. Exfiltrated session tokens can be used to take over user accounts. The vulnerability requires the attacker to be able to create or update an object with a new relation field, which depends on the Class-Level Permissions of at least one class. This vulnerability is fixed in 9.5.2-alpha.8 and 8.6.21.

Metadata

CVE ID
CVE-2026-30965
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-03-07 17:53 UTC
Published
2026-03-10 20:43 UTC
Last updated
2026-03-11 14:27 UTC
Primary CWE
CWE-863
CWE-863: Incorrect Authorization
Vendor / Product
parse-community / parse-server
Sources
cve.org  ·  NVD

Severity & Metrics

9.9 CRITICAL CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
SSVC — CISA Coordinator
Exploitation
none
Automatable
yes
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
parse-community parse-server — >= 9.0.0 < 9.5.2-alpha.8, < 8.6.21
Weakness (CWE)
CWESourceDescription
CWE-863 cna CWE-863: Incorrect Authorization
CVSS scores (1)
ScoreSeverityVersionSourceVector
9.9 CRITICAL 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
References (3)
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