{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-81643", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "state": "PUBLISHED", "assignerShortName": "EEF", "dateReserved": "2026-08-30T04:45:01.564Z", "datePublished": "2026-08-30T18:20:35.564Z", "dateUpdated": "2026-08-30T18:20:35.564Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://repo.hex.pm", "cpes": ["cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.AshGraphql.Subscription.Batcher'"], "packageName": "ash_graphql", "packageURL": "pkg:hex/ash_graphql", "product": "ash_graphql", "programFiles": ["lib/subscription/batcher.ex"], "programRoutines": [{"name": "'Elixir.AshGraphql.Subscription.Batcher':do_send/5"}], "repo": "https://github.com/ash-project/ash_graphql", "vendor": "ash-project", "versions": [{"lessThan": "1.11.0", "status": "affected", "version": "1.4.0", "versionType": "semver"}]}, {"collectionURL": "https://github.com", "cpes": ["cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.AshGraphql.Subscription.Batcher'"], "packageName": "ash-project/ash_graphql", "packageURL": "pkg:github/ash-project/ash_graphql", "product": "ash_graphql", "programFiles": ["lib/subscription/batcher.ex"], "programRoutines": [{"name": "'Elixir.AshGraphql.Subscription.Batcher':do_send/5"}], "repo": "https://github.com/ash-project/ash_graphql", "vendor": "ash-project", "versions": [{"lessThan": "e8e67f39add2ce0771e6db5f086afe68ba212c57", "status": "affected", "version": "3cb2c9870d050c7c4bba6c211aaed97d732f7e81", "versionType": "git"}]}], "configurations": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>The application exposes <code>ash_graphql</code> subscriptions with Ash authorization enabled, and two or more notifications are batched together within the batch interval (the default path).</p>"}, {"base64": false, "type": "text/markdown", "value": "The application exposes `ash_graphql` subscriptions with Ash authorization enabled, and two or more notifications are batched together within the batch interval (the default path)."}], "value": "The application exposes ash_graphql subscriptions with Ash authorization enabled, and two or more notifications are batched together within the batch interval (the default path)."}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.11.0", "versionStartIncluding": "1.4.0", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "AND"}], "credits": [{"lang": "en", "type": "finder", "value": "Peter Ullrich"}, {"lang": "en", "type": "reporter", "value": "Peter Ullrich"}, {"lang": "en", "type": "remediation developer", "value": "Zach Daniel / Ash Project"}, {"lang": "en", "type": "coordinator", "value": "Jonatan M\u00e4nnchen / EEF"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Incorrect Authorization vulnerability in ash-project ash_graphql delivers GraphQL subscription payloads for records a subscriber is not authorized to see.</p>\n<p>In <code>AshGraphql.Subscription.Batcher</code>, <code>do_send/5</code> resolves the first notification of a batch and filters it with <code>should_send?/1</code>, which drops results whose errors are coded <code>forbidden</code> or <code>not_found</code> or carry no code, precisely so that unauthorized results are not disclosed. The remaining notifications in the batch are read from the process dictionary, re-run through the pipeline, and appended to the outgoing results without that filter. They reach <code>pubsub.publish_subscription/2</code>, and the <code>not is_nil(record)</code> guard drops only nil records, not error-carrying results. Any two qualifying notifications arriving within the default one-second batch interval suffice, and batching is the default path. The fix applies <code>should_send?/1</code> to the whole batch.</p>\n<p>This issue affects ash_graphql: from 1.4.0 before 1.11.0.</p>"}, {"base64": false, "type": "text/markdown", "value": "Incorrect Authorization vulnerability in ash-project ash_graphql delivers GraphQL subscription payloads for records a subscriber is not authorized to see.\n\nIn `AshGraphql.Subscription.Batcher`, `do_send/5` resolves the first notification of a batch and filters it with `should_send?/1`, which drops results whose errors are coded `forbidden` or `not_found` or carry no code, precisely so that unauthorized results are not disclosed. The remaining notifications in the batch are read from the process dictionary, re-run through the pipeline, and appended to the outgoing results without that filter. They reach `pubsub.publish_subscription/2`, and the `not is_nil(record)` guard drops only nil records, not error-carrying results. Any two qualifying notifications arriving within the default one-second batch interval suffice, and batching is the default path. The fix applies `should_send?/1` to the whole batch.\n\nThis issue affects ash_graphql: from 1.4.0 before 1.11.0."}], "value": "Incorrect Authorization vulnerability in ash-project ash_graphql delivers GraphQL subscription payloads for records a subscriber is not authorized to see.\n\nIn AshGraphql.Subscription.Batcher, do_send/5 resolves the first notification of a batch and filters it with should_send?/1, which drops results whose errors are coded forbidden or not_found or carry no code, precisely so that unauthorized results are not disclosed. The remaining notifications in the batch are read from the process dictionary, re-run through the pipeline, and appended to the outgoing results without that filter. They reach pubsub.publish_subscription/2, and the not is_nil(record) guard drops only nil records, not error-carrying results. Any two qualifying notifications arriving within the default one-second batch interval suffice, and batching is the default path. The fix applies should_send?/1 to the whole batch.\n\nThis issue affects ash_graphql: from 1.4.0 before 1.11.0."}], "impacts": [{"capecId": "CAPEC-1", "descriptions": [{"lang": "en", "value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 2.3, "baseSeverity": "LOW", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-863", "description": "CWE-863 Incorrect Authorization", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "shortName": "EEF", "dateUpdated": "2026-08-30T18:20:35.564Z"}, "references": [{"tags": ["vendor-advisory", "related"], "url": "https://github.com/ash-project/ash_graphql/security/advisories/GHSA-j684-hch4-q888"}, {"tags": ["related"], "url": "https://cna.erlef.org/cves/CVE-2026-81643.html"}, {"tags": ["related"], "url": "https://osv.dev/vulnerability/EEF-CVE-2026-81643"}, {"tags": ["patch"], "url": "https://github.com/ash-project/ash_graphql/commit/e8e67f39add2ce0771e6db5f086afe68ba212c57"}], "source": {"discovery": "EXTERNAL"}, "title": "Broken access control in AshGraphql subscription batcher applies authorization suppression to only the first notification"}}}

{}

{"affected": [{"affectedData": [{"collectionURL": "https://repo.hex.pm", "cpes": ["cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.AshGraphql.Subscription.Batcher'"], "packageName": "ash_graphql", "packageURL": "pkg:hex/ash_graphql", "product": "ash_graphql", "programFiles": ["lib/subscription/batcher.ex"], "programRoutines": [{"name": "'Elixir.AshGraphql.Subscription.Batcher':do_send/5"}], "repo": "https://github.com/ash-project/ash_graphql", "vendor": "ash-project", "versions": [{"lessThan": "1.11.0", "status": "affected", "version": "1.4.0", "versionType": "semver"}]}, {"collectionURL": "https://github.com", "cpes": ["cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.AshGraphql.Subscription.Batcher'"], "packageName": "ash-project/ash_graphql", "packageURL": "pkg:github/ash-project/ash_graphql", "product": "ash_graphql", "programFiles": ["lib/subscription/batcher.ex"], "programRoutines": [{"name": "'Elixir.AshGraphql.Subscription.Batcher':do_send/5"}], "repo": "https://github.com/ash-project/ash_graphql", "vendor": "ash-project", "versions": [{"lessThan": "e8e67f39add2ce0771e6db5f086afe68ba212c57", "status": "affected", "version": "3cb2c9870d050c7c4bba6c211aaed97d732f7e81", "versionType": "git"}]}], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Incorrect Authorization vulnerability in ash-project ash_graphql delivers GraphQL subscription payloads for records a subscriber is not authorized to see.\n\nIn AshGraphql.Subscription.Batcher, do_send/5 resolves the first notification of a batch and filters it with should_send?/1, which drops results whose errors are coded forbidden or not_found or carry no code, precisely so that unauthorized results are not disclosed. The remaining notifications in the batch are read from the process dictionary, re-run through the pipeline, and appended to the outgoing results without that filter. They reach pubsub.publish_subscription/2, and the not is_nil(record) guard drops only nil records, not error-carrying results. Any two qualifying notifications arriving within the default one-second batch interval suffice, and batching is the default path. The fix applies should_send?/1 to the whole batch.\n\nThis issue affects ash_graphql: from 1.4.0 before 1.11.0."}], "id": "CVE-2026-81643", "lastModified": "2026-08-30T19:17:29.707", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.3, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "type": "Secondary"}]}, "published": "2026-08-30T19:17:29.707", "references": [{"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://cna.erlef.org/cves/CVE-2026-81643.html"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://github.com/ash-project/ash_graphql/commit/e8e67f39add2ce0771e6db5f086afe68ba212c57"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://github.com/ash-project/ash_graphql/security/advisories/GHSA-j684-hch4-q888"}, {"source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "url": "https://osv.dev/vulnerability/EEF-CVE-2026-81643"}], "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "type": "Secondary"}]}

{}

{"created": "2026-08-30T19:30:17.115378+00:00", "updated": "2026-08-30T19:30:17.115384+00:00", "vendors": []}