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TI-2026-80966 Aliases CVE-2026-116801GHSA-mfg3-66fp-4xc4

ACL bypass in Parse Server via $relatedTo query

Priority LOW 24CWE-943Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Parse Server before 8.6.105 and from 9.0.0 before 9.10.5-alpha.6 does not validate the owning object reference in $relatedTo relation queries. Supplying a query operator instead of an object ID bypasses the owning-object ACL check (CWE-943). A client with read access to at least one object of the owning class can disclose which readable objects are linked to owning objects it cannot read.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Parse Server before 8.6.105 and 9.0.0 before 9.10.5-alpha.6 does not validate the owning object reference in $relatedTo relation queries, so supplying a query operator instead of an object ID bypasses the owning-object ACL check. A client with read access to at least one object of the owning class can disclose which readable objects are linked to owning objects it cannot read.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00253 16th percentileScored 2026-11-07
Fix Fixed parse-server (parse-community): 9.10.5-alpha.6, 8.6.105

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

VendorProductAffected versionsFixed inStatusSource
parse-communityparse-server9.0.0 to before 9.10.5-alpha.69.10.5-alpha.6Patch availableCNA
parse-communityparse-serverbefore 8.6.1058.6.105Patch availableCNA
  • parse-server Vendorparse-community Affected 9.0.0 to before 9.10.5-alpha.6 Fixed in 9.10.5-alpha.6 Patch available CNA
  • parse-server Vendorparse-community Affected before 8.6.105 Fixed in 8.6.105 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:*:*:*——parse-community
  • cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:*:*:* Versions — — ·parse-community

Remediation

Upgrade parse-server to 8.6.105 on the 8.x line, or to 9.10.5-alpha.6 for the 9.0.0 line.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA parse-server (parse-community) Fixed in 9.10.5-alpha.6
  • Fix · CNA parse-server (parse-community) Fixed in 8.6.105

Timeline

  1. 2026-10-26 Threatist record created from CVE-2026-116801
  2. 2026-10-27 CISA SSVC decision points changed
  3. 2026-10-27 Alias added: GHSA-mfg3-66fp-4xc4

References

Advisory 1

  • 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
See all 158 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences