CVE-2026-78693 (GCVE-0-2026-78693)
Vulnerability from cvelistv5 – Published: 2026-08-30 18:28 – Updated: 2026-08-30 18:28
VLAI
EPSS
VEX
Title
Incomplete redaction re-attaches the original error path in AshGraphql, leaking internal field names
Summary
Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash_graphql allows a remote client to read internal field names that an application configured its error_handler to redact.
In AshGraphql.Errors, each error is passed to the configured error_handler and the returned map is merged with the pre-handler path via Map.put_new(handled, :path, path). Because put_new defers to the handler only when the handler itself set :path, a sanitizing handler that returns a fresh map or deletes :path has that decision reverted. The re-injected path comes from build_error_path/5, which falls back to raw internal Ash attribute and argument names when no field_names mapping is configured. A validation failure on a non-exposed or nested field therefore returns internal names in the GraphQL error path, defeating the application's redaction.
This issue affects ash_graphql: from 1.9.0 before 1.11.0.
Severity
CWE
- CWE-209 - Generation of Error Message Containing Sensitive Information
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ash-project/ash_graphql/securi… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-78693.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-78693 | related |
| https://github.com/ash-project/ash_graphql/commit… | patch |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| ash-project | ash_graphql |
Affected:
1.9.0 , < 1.11.0
(semver)
cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:* |
||
| ash-project | ash_graphql |
Affected:
6d2d8d995906d68cc245d209a9b3f9853405eb61 , < 78e90d369f09f44c534816de541e60841066a467
(git)
cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:* |
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"value": "\u003cp\u003eGeneration of Error Message Containing Sensitive Information vulnerability in ash-project ash_graphql allows a remote client to read internal field names that an application configured its \u003ccode\u003eerror_handler\u003c/code\u003e to redact.\u003c/p\u003e\n\u003cp\u003eIn \u003ccode\u003eAshGraphql.Errors\u003c/code\u003e, each error is passed to the configured \u003ccode\u003eerror_handler\u003c/code\u003e and the returned map is merged with the pre-handler path via \u003ccode\u003eMap.put_new(handled, :path, path)\u003c/code\u003e. Because \u003ccode\u003eput_new\u003c/code\u003e defers to the handler only when the handler itself set \u003ccode\u003e:path\u003c/code\u003e, a sanitizing handler that returns a fresh map or deletes \u003ccode\u003e:path\u003c/code\u003e has that decision reverted. The re-injected path comes from \u003ccode\u003ebuild_error_path/5\u003c/code\u003e, which falls back to raw internal Ash attribute and argument names when no \u003ccode\u003efield_names\u003c/code\u003e mapping is configured. A validation failure on a non-exposed or nested field therefore returns internal names in the GraphQL error \u003ccode\u003epath\u003c/code\u003e, defeating the application\u0027s redaction.\u003c/p\u003e\n\u003cp\u003eThis issue affects ash_graphql: from 1.9.0 before 1.11.0.\u003c/p\u003e"
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"value": "Generation of Error Message Containing Sensitive Information vulnerability in ash-project ash_graphql allows a remote client to read internal field names that an application configured its `error_handler` to redact.\n\nIn `AshGraphql.Errors`, each error is passed to the configured `error_handler` and the returned map is merged with the pre-handler path via `Map.put_new(handled, :path, path)`. Because `put_new` defers to the handler only when the handler itself set `:path`, a sanitizing handler that returns a fresh map or deletes `:path` has that decision reverted. The re-injected path comes from `build_error_path/5`, which falls back to raw internal Ash attribute and argument names when no `field_names` mapping is configured. A validation failure on a non-exposed or nested field therefore returns internal names in the GraphQL error `path`, defeating the application\u0027s redaction.\n\nThis issue affects ash_graphql: from 1.9.0 before 1.11.0."
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"title": "Incomplete redaction re-attaches the original error path in AshGraphql, leaking internal field names"
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}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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