CVE-2026-112768

Parse Server before 8.6.99 and 9.x before 9.10.3-alpha.2 Information Disclosure via User Update

At a glance

Severity: MEDIUM 6.9
EPSS: EPSS 0.40 % · percentile 34 (2026-10-27)
State: PUBLISHED
Published: 2026-10-19
Updated: 2026-10-19
Assigner: VulnCheck
NVD status: Awaiting Analysis

Description

Parse Server before 8.6.99 and 9.0.0 before 9.10.3-alpha.2 evaluates checks against the target account during a user update before authorizing the caller, and reflects their outcome in the response. An unauthorized caller, with or without a session, can confirm guessed usernames or emails and, when passwordPolicy.maxPasswordHistory or doNotAllowUsername is set, guessed current or previous passwords, bypassing account lockout.

Scores

Version	Score	Vector	Scored by
CVSS 4.0	MEDIUM 6.9	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	VulnCheck
CVSS 4.0	MEDIUM 6.9	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	NVD · disclosure@vulncheck.com (Secondary)

Weaknesses (CWE)

CWE-863

European references

ENISA EUVD · EUVD-2026-104574
GCVE · GCVE-0-2026-112768

Affected products

Product	Versions
parse-community · parse-server	affected 9.0.0 < 9.10.3-alpha.2 ; unaffected 9.10.3-alpha.2
parse-community · parse-server	affected 0 < 8.6.99 ; unaffected 8.6.99

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD