{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-107727", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-08T17:21:52.976Z", "datePublished": "2026-10-08T22:11:12.785Z", "dateUpdated": "2026-10-08T22:11:12.785Z"}, "containers": {"cna": {"title": "Strawberry legacy graphql-ws retains naturally completed subscription slots", "problemTypes": [{"descriptions": [{"cweId": "CWE-400", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 3.7, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/strawberry-graphql/strawberry/security/advisories/GHSA-m952-2w3f-6r8h", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/strawberry-graphql/strawberry/security/advisories/GHSA-m952-2w3f-6r8h"}, {"name": "https://github.com/strawberry-graphql/strawberry/pull/4610", "tags": ["x_refsource_MISC"], "url": "https://github.com/strawberry-graphql/strawberry/pull/4610"}, {"name": "https://github.com/strawberry-graphql/strawberry/commit/24c5e46d57f7ad4f77e6e01fb8ae482dd1c0ff92", "tags": ["x_refsource_MISC"], "url": "https://github.com/strawberry-graphql/strawberry/commit/24c5e46d57f7ad4f77e6e01fb8ae482dd1c0ff92"}, {"name": "https://github.com/strawberry-graphql/strawberry/releases/tag/0.327.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/strawberry-graphql/strawberry/releases/tag/0.327.2"}], "affected": [{"vendor": "strawberry-graphql", "product": "strawberry", "versions": [{"version": ">= 0.312.3, < 0.327.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-08T22:11:12.785Z"}, "descriptions": [{"lang": "en", "value": "Strawberry GraphQL is a library for creating GraphQL APIs. From 0.312.3 until 0.327.2, the legacy graphql-ws subscription handler in strawberry/subscriptions/protocols/graphql_ws/handlers.py does not remove naturally completed operations from self.tasks and self.subscriptions. When max_subscriptions_per_connection is configured, a client on a persistent WebSocket connection can use distinct operation IDs for one-shot subscriptions to fill the connection's configured slots even after those subscriptions send complete, causing later legitimate operations on that connection to be rejected with Subscription limit reached. The modern graphql-transport-ws protocol and deployments without the configured per-connection cap are not affected. This issue is fixed in version 0.327.2."}], "source": {"advisory": "GHSA-m952-2w3f-6r8h", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "strawberry", "vendor": "strawberry-graphql", "versions": [{"status": "affected", "version": ">= 0.312.3, < 0.327.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Strawberry GraphQL is a library for creating GraphQL APIs. From 0.312.3 until 0.327.2, the legacy graphql-ws subscription handler in strawberry/subscriptions/protocols/graphql_ws/handlers.py does not remove naturally completed operations from self.tasks and self.subscriptions. When max_subscriptions_per_connection is configured, a client on a persistent WebSocket connection can use distinct operation IDs for one-shot subscriptions to fill the connection's configured slots even after those subscriptions send complete, causing later legitimate operations on that connection to be rejected with Subscription limit reached. The modern graphql-transport-ws protocol and deployments without the configured per-connection cap are not affected. This issue is fixed in version 0.327.2."}], "id": "CVE-2026-107727", "lastModified": "2026-10-09T17:06:17.770", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 3.7, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-08T23:16:58.010", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/strawberry-graphql/strawberry/commit/24c5e46d57f7ad4f77e6e01fb8ae482dd1c0ff92"}, {"source": "security-advisories@github.com", "url": "https://github.com/strawberry-graphql/strawberry/pull/4610"}, {"source": "security-advisories@github.com", "url": "https://github.com/strawberry-graphql/strawberry/releases/tag/0.327.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/strawberry-graphql/strawberry/security/advisories/GHSA-m952-2w3f-6r8h"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{"bugzilla": {"description": "strawberry-graphql: strawberry-graphql: Denial of service via uncleared completed subscriptions", "id": "2548316", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2548316"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.7", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in strawberry-graphql, which could lead to a denial of service (DoS) on affected connections. When a limit on subscriptions per connection is configured, the legacy subscription handler fails to properly remove completed operations from internal tracking. A remote client can exhaust the allocated connection slots by sending multiple short-lived subscription requests over a persistent connection, causing subsequent legitimate operations on that connection to be rejected."], "name": "CVE-2026-107727", "package_state": [{"cpe": "cpe:/a:redhat:exploit_intelligence:0", "fix_state": "Out of support scope", "package_name": "exploit-intelligence/vulnerability-analysis-rhel9", "product_name": "Exploit Intelligence"}], "public_date": "2026-10-08T22:11:12Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-107727\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-107727\nhttps://github.com/strawberry-graphql/strawberry/commit/24c5e46d57f7ad4f77e6e01fb8ae482dd1c0ff92\nhttps://github.com/strawberry-graphql/strawberry/pull/4610\nhttps://github.com/strawberry-graphql/strawberry/releases/tag/0.327.2\nhttps://github.com/strawberry-graphql/strawberry/security/advisories/GHSA-m952-2w3f-6r8h"], "threat_severity": "Low"}

{"created": "2026-10-09T01:00:14.868022+00:00", "updated": "2026-10-09T01:45:08.710902+00:00", "vendors": [], "weaknesses": ["CWE-400", "CWE-772"]}