{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-104182", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-01T18:54:15.118Z", "datePublished": "2026-10-01T20:15:39.108Z", "dateUpdated": "2026-10-05T20:20:30.414Z"}, "containers": {"cna": {"title": "stream-json: JSONC parser and verifier re-scan the whole accumulated comment on every input chunk", "problemTypes": [{"descriptions": [{"cweId": "CWE-407", "lang": "en", "description": "CWE-407: Inefficient Algorithmic Complexity", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/uhop/stream-json/security/advisories/GHSA-hqr4-qq8f-hg3x", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/uhop/stream-json/security/advisories/GHSA-hqr4-qq8f-hg3x"}, {"name": "https://github.com/uhop/stream-json/commit/c0299dc168ce9455ef5ca5b6a0f6850ee7fa0468", "tags": ["x_refsource_MISC"], "url": "https://github.com/uhop/stream-json/commit/c0299dc168ce9455ef5ca5b6a0f6850ee7fa0468"}, {"name": "https://github.com/uhop/stream-json/releases/tag/3.6.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/uhop/stream-json/releases/tag/3.6.0"}], "affected": [{"vendor": "uhop", "product": "stream-json", "versions": [{"version": "< 3.6.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-01T20:15:39.108Z"}, "descriptions": [{"lang": "en", "value": "stream-json is a micro-library of stream components for processing JSON and JSONC with a minimal memory footprint. Prior to 3.6.0, the JSONC parser at stream-json/jsonc/parser.js and verifier at stream-json/jsonc/verifier.js restart comment-terminator scanning from the opening slash whenever a block or line comment spans an input chunk, while retaining the accumulated comment buffer. Delivering a large valid comment across many small chunks therefore causes quadratic CPU work and can stall the Node.js event loop. The maintainer characterizes the attack vector as local because the documented JSONC input is locally owned or user-controlled configuration, rather than input intended for the open internet. This JSONC-only scope does not include the plain JSON parser, which advances through and discards consumed string and number data. This issue is fixed in version 3.6.0."}], "source": {"advisory": "GHSA-hqr4-qq8f-hg3x", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/uhop/stream-json/security/advisories/GHSA-hqr4-qq8f-hg3x", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-05T20:20:24.504694Z", "id": "CVE-2026-104182", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-05T20:20:30.414Z"}}]}}

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{"bugzilla": {"description": "stream-json: stream-json: Denial of Service via inefficient comment scanning", "id": "2544816", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2544816"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.2", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-1322", "details": ["A flaw was found in stream-json. A local attacker can cause a Denial of Service (DoS) by providing JSON with Comments (JSONC) input containing large comments split across multiple small chunks. The parser repeatedly rescans accumulated comment data from the beginning for each chunk, leading to excessive CPU consumption and stalling the application event loop."], "name": "CVE-2026-104182", "package_state": [{"cpe": "cpe:/a:redhat:podman_desktop:1", "fix_state": "Fix deferred", "package_name": "rh-podman-desktop", "product_name": "Red Hat Build of Podman Desktop"}], "public_date": "2026-10-01T20:15:39Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-104182\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-104182\nhttps://github.com/uhop/stream-json/commit/c0299dc168ce9455ef5ca5b6a0f6850ee7fa0468\nhttps://github.com/uhop/stream-json/releases/tag/3.6.0\nhttps://github.com/uhop/stream-json/security/advisories/GHSA-hqr4-qq8f-hg3x"], "threat_severity": "Moderate"}

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