Denial of service in Parse Server via afterSave pointer update
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-248.
Summary
Parse Server versions before 8.6.110 and from 9.0.0 before 9.10.6-alpha.2 are affected. An object update that uses a dot notation key targeting a pointer field's object identifier, on a class with an afterSave trigger, fails to contain a serialization error, which causes an uncaught exception (CWE-248). An unauthenticated attacker can crash the Node process when objects are writable without a session.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Description from the CNA
Parse Server before 8.6.110 and 9.0.0 before 9.10.6-alpha.2 fails to contain a serialization error when an object update uses a dot notation key targeting a pointer field's object identifier on a class with an afterSave trigger. Attackers, including unauthenticated clients when objects are writable without a session, can send such an update to crash the Node process.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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 9.10.6-alpha.2 | 9.10.6-alpha.2 | Patch available | CNA |
| parse-community | parse-server | before 8.6.110 | 8.6.110 | Patch available | CNA |
- parse-server Vendorparse-community Affected 9.0.0 to before 9.10.6-alpha.2 Fixed in 9.10.6-alpha.2 Patch available CNA
- parse-server Vendorparse-community Affected before 8.6.110 Fixed in 8.6.110 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 8.6.110 for the 8 branch or to 9.10.6-alpha.2 for the 9 branch.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
- Fix · CNA parse-server (parse-community) Fixed in 9.10.6-alpha.2
- Fix · CNA parse-server (parse-community) Fixed in 8.6.110
Timeline
- 2026-11-03 Threatist record created from CVE-2026-121414
- 2026-11-03 Alias added: GHSA-vp2c-fv9g-pc39
- 2026-11-05 Priority changed: MEDIUM → LOW
- 2026-11-07 CISA SSVC decision points changed
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-2026-121414 · CVE Program
- CVE-2026-121414 · NVD
- FIRST EPSS
- GHSA-vp2c-fv9g-pc39 · 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