Parse Server user update discloses account existence and passwords
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.
Summary
Parse Server before 8.6.99 and 9.0.0 before 9.10.3-alpha.2 checks the target account during a user update before authorizing the caller and reflects the result in the response (CWE-863). 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.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| parse-community | parse-server | 9.0.0 to before 9.10.3-alpha.2 | 9.10.3-alpha.2 | Patch available | CNA |
| parse-community | parse-server | before 8.6.99 | 8.6.99 | Patch available | CNA |
- parse-server Vendorparse-community Affected 9.0.0 to before 9.10.3-alpha.2 Fixed in 9.10.3-alpha.2 Patch available CNA
- parse-server Vendorparse-community Affected before 8.6.99 Fixed in 8.6.99 Patch available CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:*:*:* | — | — | parse-community |
- cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:*:*:* Versions — — ·parse-community
Remediation
Upgrade parse-server to 8.6.99 in the 8.x line and to 9.10.3-alpha.2 in the 9.x line.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
- Fix · CNA parse-server (parse-community) Fixed in 9.10.3-alpha.2
- Fix · CNA parse-server (parse-community) Fixed in 8.6.99
Timeline
- 2026-10-20 Threatist record created from CVE-2026-112768
- 2026-10-20 Alias added: GHSA-w8m9-f3qj-3xfx
References
More parse-community vulnerabilities
- TI-2022-08574 Command Injection in Parse server CVSS 3.1CRITICAL 10.0
- TI-2024-18136 Parse Server literalizeRegexPart SQL Injection CVSS 3.1CRITICAL 10.0
- TI-2022-18768 Parse Server vulnerable to Remote Code Execution via prototype pollution in MongoDB BSON parser CVSS 3.1CRITICAL 9.8
- TI-2024-31550 Parse Server's custom object ID allows to acquire role privileges CVSS 3.1HIGH 8.1
- TI-2025-35510 parse is a package designed to parse JavaScript SDK. CVSS 3.1MEDIUM 6.5
- TI-2024-26265 ZDI-CAN-23894: Parse Server literalizeRegexPart SQL Injection Authentication Bypass Vulnerability CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-112768 · CVE Program
- CVE-2026-112768 · NVD
- FIRST EPSS
- GHSA-w8m9-f3qj-3xfx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences