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TI-2026-56295 Aliases CVE-2026-81633

Unhandled KeyError in AshGraphql relay node resolution crashes queries via an unknown type segment

Priority HIGH 70CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
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

Improper Input Validation vulnerability in ash-project ash_graphql allows an unauthenticated client to crash a relay node(id: ...) query with an unhandled KeyError. AshGraphql.Graphql.Resolver.resolve_node/2 decodes the client-supplied global ID with decode_relay_id/1, which only base64-decodes the string and splits it on : without validating the type segment. The decoded type is passed straight to Map.fetch!(type_to_domain_and_resource_map, type). Because fetch! raises on a missing key, a relay ID whose type segment is a valid atom that is not a relay-exposed type aborts the resolver before its resolve/2 clauses and their rescue handlers run, so the error never becomes a GraphQL error and may expose a stacktrace. Common resource names are easy to guess. The fix uses Map.fetch/2 and returns an Invalid node id error for unknown types. This issue affects ash_graphql: from 0.27.0 before 1.11.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00524 44th percentileScored 2026-11-07
Fix Fixed ash_graphql (ash-project): 1.11.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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

VendorProductAffected versionsFixed inStatusSource
ash-projectash_graphql0.27.0 to before 1.11.01.11.0Patch availableCNA
  • ash_graphql Vendorash-project Affected 0.27.0 to before 1.11.0 Fixed in 1.11.0 Patch available CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*———
  • cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

  • Fix · CNA ash_graphql (ash-project) Fixed in 1.11.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    ash-project ash_graphql 1.11.0

    6 records Highest priority Priority HIGH 3 HIGH, 3 MEDIUM

    Other records, highest priority first

    • TI-2026-56298 Query-complexity limit bypass via first/last pagination arguments in AshGraphql enables denial of servicePriority HIGH 77
    • TI-2026-54700 Incomplete redaction re-attaches the original error path in AshGraphql, leaking internal field namesPriority HIGH 70
    • TI-2026-55458 Cross-tenant subscription disclosure in AshGraphql authorizes notifications in memory without a tenant-scoped readPriority MEDIUM 64
    Show all 6 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-81633

References

Patch 1

Advisory 1

Other 2

  • TI-2026-56298 Query-complexity limit bypass via first/last pagination arguments in AshGraphql enables denial of service CVSS 4.0HIGH 8.7
  • TI-2026-52572 Unbounded atom creation from client-supplied RPC field names in AshTypescript field formatter CVSS 4.0HIGH 8.7
  • TI-2026-57010 Path traversal in AshAdmin file uploads via unsanitized client filename CVSS 4.0HIGH 8.3
  • TI-2026-26840 Ash Framework: Ash.Type.Module.cast_input/2 atom exhaustion via unchecked Module.concat allows BEAM VM crash CVSS 4.0HIGH 8.2
  • TI-2026-54252 EEx template evaluation of prompt content in AshAi enables remote code execution CVSS 4.0HIGH 8.9
  • TI-2026-54208 Stored XSS in AshAdmin relationship typeahead via unescaped label_field content CVSS 4.0HIGH 8.4
See all 90 →

Sources

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