EEF-CVE-2026-81633

Source
https://cna.erlef.org/osv/EEF-CVE-2026-81633.html
Import Source
https://cna.erlef.org/osv/EEF-CVE-2026-81633.json
JSON Data
https://api.osv.dev/v1/vulns/EEF-CVE-2026-81633
Aliases
  • CVE-2026-81633
  • GHSA-mrgv-g7gf-r96h
Published
2026-08-30T18:22:07.096Z
Modified
2026-08-30T18:25:38.208616322Z
Severity
  • 6.9 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
Unhandled KeyError in AshGraphql relay node resolution crashes queries via an unknown type segment
Details

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.

Database specific
{
    "cpe_ids": [
        "cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*"
    ],
    "capec_ids": [
        "CAPEC-153"
    ],
    "cwe_ids": [
        "CWE-20"
    ]
}
References
Credits
    • Peter Ullrich - FINDER
    • Peter Ullrich - REPORTER
    • Zach Daniel / Ash Project - REMEDIATION_DEVELOPER
    • Jonatan Männchen / EEF - COORDINATOR

Affected packages

Hex / ash_graphql

Package

Name
ash_graphql
Purl
pkg:hex/ash_graphql

Affected ranges

Type
SEMVER
Events
Introduced
0.27.0
Fixed
1.11.0

Affected versions

0.*
0.27.0
0.27.1
0.28.0
0.28.1
1.*
1.0.0-rc.0
1.0.0-rc.1
1.0.0-rc.2
1.0.0-rc.3
1.0.0-rc.4
1.0.0-rc.5
1.0.0
1.0.1
1.1.0
1.1.1
1.2.0
1.2.1
1.3.0
1.3.1
1.3.2
1.3.3
1.3.4
1.4.0
1.4.1
1.4.2
1.4.3
1.4.4
1.4.5
1.4.6
1.4.7
1.5.0
1.5.1
1.6.0
1.7.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.7.8
1.7.9
1.7.10
1.7.11
1.7.12
1.7.13
1.7.14
1.7.15
1.7.16
1.7.17
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.8.5
1.9.0
1.9.1
1.9.2
1.9.3
1.9.4
1.10.0
1.10.1

Database specific

source
"https://cna.erlef.org/osv/EEF-CVE-2026-81633.json"

Git / github.com/ash-project/ash_graphql

Affected ranges

Type
GIT
Repo
https://github.com/ash-project/ash_graphql
Events

Affected versions

1.*
1.0.0
v0.*
v0.27.0
v0.27.1
v0.28.0
v1.*
v1.0.0
v1.0.0-rc.0
v1.0.0-rc.1
v1.0.0-rc.2
v1.0.0-rc.3
v1.0.0-rc.4
v1.0.0-rc.5
v1.0.1
v1.1.1
v1.10.0
v1.10.1
v1.2.1
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.3.4
v1.4.0
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.4.6
v1.4.7
v1.5.0
v1.5.1
v1.6.0
v1.7.0
v1.7.1
v1.7.10
v1.7.11
v1.7.12
v1.7.13
v1.7.14
v1.7.15
v1.7.16
v1.7.17
v1.7.2
v1.7.3
v1.7.4
v1.7.5
v1.7.6
v1.7.7
v1.7.8
v1.7.9
v1.8.0
v1.8.1
v1.8.2
v1.8.3
v1.8.4
v1.8.5
v1.9.0
v1.9.1
v1.9.2
v1.9.3
v1.9.4

Database specific

source
"https://cna.erlef.org/osv/EEF-CVE-2026-81633.json"