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Vulnerability details: VCID-qupn-1ytd-tkae
Vulnerability ID VCID-qupn-1ytd-tkae
Aliases CVE-2026-31828
GHSA-7m6r-fhh7-r47c
Summary Parse Server vulnerable to LDAP injection via unsanitized user input in DN and group filter construction The LDAP authentication adapter is vulnerable to LDAP injection. User-supplied input (`authData.id`) is interpolated directly into LDAP Distinguished Names (DN) and group search filters without escaping special characters. This allows an attacker with valid LDAP credentials to manipulate the bind DN structure and to bypass group membership checks. This enables privilege escalation from any authenticated LDAP user to a member of any restricted group. The vulnerability affects Parse Server deployments that use the LDAP authentication adapter with group-based access control.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-90 Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
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 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2026-31828
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2026-31828
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2026-31828
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-7m6r-fhh7-r47c
cvssv4 6.0 https://github.com/parse-community/parse-server
generic_textual MODERATE https://github.com/parse-community/parse-server
cvssv4 6 https://github.com/parse-community/parse-server/releases/tag/8.6.26
cvssv4 6.0 https://github.com/parse-community/parse-server/releases/tag/8.6.26
generic_textual MODERATE https://github.com/parse-community/parse-server/releases/tag/8.6.26
ssvc Track https://github.com/parse-community/parse-server/releases/tag/8.6.26
cvssv4 6 https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.13
cvssv4 6.0 https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.13
generic_textual MODERATE https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.13
ssvc Track https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.13
cvssv3.1_qr MODERATE https://github.com/parse-community/parse-server/security/advisories/GHSA-7m6r-fhh7-r47c
cvssv4 6 https://github.com/parse-community/parse-server/security/advisories/GHSA-7m6r-fhh7-r47c
cvssv4 6.0 https://github.com/parse-community/parse-server/security/advisories/GHSA-7m6r-fhh7-r47c
generic_textual MODERATE https://github.com/parse-community/parse-server/security/advisories/GHSA-7m6r-fhh7-r47c
ssvc Track https://github.com/parse-community/parse-server/security/advisories/GHSA-7m6r-fhh7-r47c
cvssv4 6.0 https://nvd.nist.gov/vuln/detail/CVE-2026-31828
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2026-31828
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-31828
https://github.com/parse-community/parse-server
https://github.com/parse-community/parse-server/releases/tag/8.6.26
https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.13
CVE-2026-31828 https://nvd.nist.gov/vuln/detail/CVE-2026-31828
GHSA-7m6r-fhh7-r47c https://github.com/advisories/GHSA-7m6r-fhh7-r47c
GHSA-7m6r-fhh7-r47c https://github.com/parse-community/parse-server/security/advisories/GHSA-7m6r-fhh7-r47c
No exploits are available.
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/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:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/releases/tag/8.6.26
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:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/releases/tag/8.6.26
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-11T15:51:50Z/ Found at https://github.com/parse-community/parse-server/releases/tag/8.6.26
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.13
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:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.13
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-11T15:51:50Z/ Found at https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.13
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/security/advisories/GHSA-7m6r-fhh7-r47c
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:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/security/advisories/GHSA-7m6r-fhh7-r47c
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: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-11T15:51:50Z/ Found at https://github.com/parse-community/parse-server/security/advisories/GHSA-7m6r-fhh7-r47c
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2026-31828
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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Exploit Prediction Scoring System (EPSS)
Percentile 0.37247
EPSS Score 0.00164
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T04:51:38.205110+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/npm/parse-server/CVE-2026-31828.yml 38.6.0