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Vulnerability details: VCID-9kyv-xmvr-nfgf
Vulnerability ID VCID-9kyv-xmvr-nfgf
Aliases CVE-2026-32242
GHSA-2cjm-2gwv-m892
Summary Parse Server's OAuth2 adapter shares mutable state across providers via singleton instance Parse Server's built-in OAuth2 auth adapter exports a singleton instance that is reused directly across all OAuth2 provider configurations. Under concurrent authentication requests for different OAuth2 providers, one provider's token validation may execute using another provider's configuration, potentially allowing a token that should be rejected by one provider to be accepted because it is validated against a different provider's policy. Deployments that configure multiple OAuth2 providers via the `oauth2: true` flag are affected.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2026-32242
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2026-32242
epss 0.00066 https://api.first.org/data/v1/epss?cve=CVE-2026-32242
cvssv3.1_qr CRITICAL https://github.com/advisories/GHSA-2cjm-2gwv-m892
cvssv4 9.1 https://github.com/parse-community/parse-server
generic_textual CRITICAL https://github.com/parse-community/parse-server
cvssv4 9.1 https://github.com/parse-community/parse-server/releases/tag/8.6.37
generic_textual CRITICAL https://github.com/parse-community/parse-server/releases/tag/8.6.37
ssvc Track https://github.com/parse-community/parse-server/releases/tag/8.6.37
cvssv4 9.1 https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.11
generic_textual CRITICAL https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.11
ssvc Track https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.11
cvssv3.1_qr CRITICAL https://github.com/parse-community/parse-server/security/advisories/GHSA-2cjm-2gwv-m892
cvssv4 9.1 https://github.com/parse-community/parse-server/security/advisories/GHSA-2cjm-2gwv-m892
generic_textual CRITICAL https://github.com/parse-community/parse-server/security/advisories/GHSA-2cjm-2gwv-m892
ssvc Track https://github.com/parse-community/parse-server/security/advisories/GHSA-2cjm-2gwv-m892
cvssv4 9.1 https://nvd.nist.gov/vuln/detail/CVE-2026-32242
generic_textual CRITICAL https://nvd.nist.gov/vuln/detail/CVE-2026-32242
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-32242
https://github.com/parse-community/parse-server
https://github.com/parse-community/parse-server/releases/tag/8.6.37
https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.11
CVE-2026-32242 https://nvd.nist.gov/vuln/detail/CVE-2026-32242
GHSA-2cjm-2gwv-m892 https://github.com/advisories/GHSA-2cjm-2gwv-m892
GHSA-2cjm-2gwv-m892 https://github.com/parse-community/parse-server/security/advisories/GHSA-2cjm-2gwv-m892
No exploits are available.
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/releases/tag/8.6.37
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

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physical

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-03-12T20:20:03Z/ Found at https://github.com/parse-community/parse-server/releases/tag/8.6.37
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.11
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

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present

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-03-12T20:20:03Z/ Found at https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.11
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/security/advisories/GHSA-2cjm-2gwv-m892
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

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present

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Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-03-12T20:20:03Z/ Found at https://github.com/parse-community/parse-server/security/advisories/GHSA-2cjm-2gwv-m892
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2026-32242
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

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none

passive

active

high

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none

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Exploit Prediction Scoring System (EPSS)
Percentile 0.20637
EPSS Score 0.00066
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T04:51:51.339538+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/npm/parse-server/CVE-2026-32242.yml 38.6.0