{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-42570", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-04-28T17:26:12.084Z", "datePublished": "2026-06-09T16:12:26.377Z", "dateUpdated": "2026-08-21T12:12:51.979Z"}, "containers": {"cna": {"title": "Svelte devalue: DoS via sparse array deserialization", "problemTypes": [{"descriptions": [{"cweId": "CWE-770", "lang": "en", "description": "CWE-770: Allocation of Resources Without Limits or Throttling", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/sveltejs/devalue/security/advisories/GHSA-77vg-94rm-hx3p", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/sveltejs/devalue/security/advisories/GHSA-77vg-94rm-hx3p"}, {"name": "https://github.com/sveltejs/devalue/commit/206ca6712fbc380a4571c59de9ab04b91110792d", "tags": ["x_refsource_MISC"], "url": "https://github.com/sveltejs/devalue/commit/206ca6712fbc380a4571c59de9ab04b91110792d"}, {"name": "https://github.com/sveltejs/devalue/releases/tag/v5.8.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/sveltejs/devalue/releases/tag/v5.8.1"}], "affected": [{"vendor": "sveltejs", "product": "devalue", "versions": [{"version": ">= 5.6.3, < 5.8.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-09T16:12:26.377Z"}, "descriptions": [{"lang": "en", "value": "Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From version 5.6.3 to before version 5.8.1, devalue.parse could, due to quirks in some JavaScript engines, be convinced to allocate much more memory than was needed when deserializing sparse arrays, leading to excessive memory consumption. This issue has been patched in version 5.8.1."}], "source": {"advisory": "GHSA-77vg-94rm-hx3p", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-09T18:06:15.435480Z", "id": "CVE-2026-42570", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"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": "2026-06-09T18:06:56.030Z"}}, {"affected": [{"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:10.2"], "defaultStatus": "affected", "packageName": "rh-podman-desktop", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:1.1.2-1.el10_2", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:trusted_artifact_signer:1.4::el9"], "defaultStatus": "affected", "packageName": "rhtas/rekor-search-ui-rhel9", "product": "Red Hat Trusted Artifact Signer 1.4", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1783327185", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:podman_desktop:1"], "defaultStatus": "unknown", "packageName": "rh-podman-desktop.git", "product": "Red Hat Build of Podman Desktop", "vendor": "Red Hat"}], "datePublic": "2026-06-09T16:12:26.377Z", "descriptions": [{"lang": "en", "value": "A flaw was found in devalue, a JavaScript library used for serializing values. Due to quirks in some JavaScript engines, the `devalue.parse` function could be exploited by a remote attacker when deserializing specially crafted sparse arrays. This could lead to excessive memory consumption, resulting in a Denial of Service (DoS) for the affected system."}], "metrics": [{"other": {"content": {"namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS"}], "problemTypes": [{"descriptions": [{"cweId": "CWE-770", "description": "Allocation of Resources Without Limits or Throttling", "lang": "en", "type": "CWE"}]}], "references": [{"tags": ["vdb-entry", "x_refsource_REDHAT"], "url": "https://access.redhat.com/security/cve/CVE-2026-42570"}, {"name": "RHBZ#2487050", "tags": ["issue-tracking", "x_refsource_REDHAT"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2487050"}, {"tags": ["x_sadp-csaf-vex"], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42570.json"}, {"tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2026:57590"}, {"tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2026:37272"}], "solutions": [{"lang": "en", "value": "RHSA-2026:57590: Red Hat Enterprise Linux Extensions Channel (v. 10)"}, {"lang": "en", "value": "RHSA-2026:37272: Red Hat Trusted Artifact Signer 1.4"}], "timeline": [{"lang": "en", "time": "2026-06-09T17:01:16.012Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-06-09T16:12:26.377Z", "value": "Made public."}], "title": "devalue: devalue: Excessive memory consumption via deserialization of sparse arrays", "x_adpType": "supplier", "x_generator": {"engine": "sadp-cli 1.0.0"}, "providerMetadata": {"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-08-21T12:12:51.979Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "devalue: devalue: Excessive memory consumption via deserialization of sparse arrays", "metrics": [{"other": {"type": "Red Hat severity rating", "content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}}}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"cpes": ["cpe:/o:redhat:enterprise_linux:10.2"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "versions": [{"status": "unaffected", "version": "0:1.1.2-1.el10_2", "lessThan": "*", "versionType": "rpm"}], "packageName": "rh-podman-desktop", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:trusted_artifact_signer:1.4::el9"], "vendor": "Red Hat", "product": "Red Hat Trusted Artifact Signer 1.4", "versions": [{"status": "unaffected", "version": "1783327185", "lessThan": "*", "versionType": "rpm"}], "packageName": "rhtas/rekor-search-ui-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:podman_desktop:1"], "vendor": "Red Hat", "product": "Red Hat Build of Podman Desktop", "packageName": "rh-podman-desktop.git", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unknown"}], "timeline": [{"lang": "en", "time": "2026-06-09T17:01:16.012Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-06-09T16:12:26.377Z", "value": "Made public."}], "solutions": [{"lang": "en", "value": "RHSA-2026:57590: Red Hat Enterprise Linux Extensions Channel (v. 10)"}, {"lang": "en", "value": "RHSA-2026:37272: Red Hat Trusted Artifact Signer 1.4"}], "x_adpType": "supplier", "datePublic": "2026-06-09T16:12:26.377Z", "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-42570", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2487050", "name": "RHBZ#2487050", "tags": ["issue-tracking", "x_refsource_REDHAT"]}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42570.json", "tags": ["x_sadp-csaf-vex"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:57590", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:37272", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}], "x_generator": {"engine": "sadp-cli 1.0.0"}, "descriptions": [{"lang": "en", "value": "A flaw was found in devalue, a JavaScript library used for serializing values. Due to quirks in some JavaScript engines, the `devalue.parse` function could be exploited by a remote attacker when deserializing specially crafted sparse arrays. This could lead to excessive memory consumption, resulting in a Denial of Service (DoS) for the affected system."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-770", "description": "Allocation of Resources Without Limits or Throttling"}]}], "providerMetadata": {"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-08-21T12:12:51.979Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-42570", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-09T18:06:15.435480Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-09T18:06:42.643Z"}}], "cna": {"title": "Svelte devalue: DoS via sparse array deserialization", "source": {"advisory": "GHSA-77vg-94rm-hx3p", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "sveltejs", "product": "devalue", "versions": [{"status": "affected", "version": ">= 5.6.3, < 5.8.1"}]}], "references": [{"url": "https://github.com/sveltejs/devalue/security/advisories/GHSA-77vg-94rm-hx3p", "name": "https://github.com/sveltejs/devalue/security/advisories/GHSA-77vg-94rm-hx3p", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/sveltejs/devalue/commit/206ca6712fbc380a4571c59de9ab04b91110792d", "name": "https://github.com/sveltejs/devalue/commit/206ca6712fbc380a4571c59de9ab04b91110792d", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/sveltejs/devalue/releases/tag/v5.8.1", "name": "https://github.com/sveltejs/devalue/releases/tag/v5.8.1", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From version 5.6.3 to before version 5.8.1, devalue.parse could, due to quirks in some JavaScript engines, be convinced to allocate much more memory than was needed when deserializing sparse arrays, leading to excessive memory consumption. This issue has been patched in version 5.8.1."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-770", "description": "CWE-770: Allocation of Resources Without Limits or Throttling"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-09T16:12:26.377Z"}}}, "cveMetadata": {"cveId": "CVE-2026-42570", "state": "PUBLISHED", "dateUpdated": "2026-08-21T12:12:51.979Z", "dateReserved": "2026-04-28T17:26:12.084Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-06-09T16:12:26.377Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "devalue", "vendor": "sveltejs", "versions": [{"status": "affected", "version": ">= 5.6.3, < 5.8.1"}]}], "source": "security-advisories@github.com"}, {"affectedData": [{"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/o:redhat:enterprise_linux:10.2"], "defaultStatus": "affected", "packageName": "rh-podman-desktop", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:1.1.2-1.el10_2", "versionType": "rpm"}]}, {"collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": ["cpe:/a:redhat:trusted_artifact_signer:1.4::el9"], "defaultStatus": "affected", "packageName": "rhtas/rekor-search-ui-rhel9", "product": "Red Hat Trusted Artifact Signer 1.4", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "1783327185", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:podman_desktop:1"], "defaultStatus": "unknown", "packageName": "rh-podman-desktop.git", "product": "Red Hat Build of Podman Desktop", "vendor": "Red Hat"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:svelte:devalue:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "D2127A9A-A72E-41DE-B82E-02CD15CD15E2", "versionEndExcluding": "5.8.1", "versionStartIncluding": "5.6.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From version 5.6.3 to before version 5.8.1, devalue.parse could, due to quirks in some JavaScript engines, be convinced to allocate much more memory than was needed when deserializing sparse arrays, leading to excessive memory consumption. This issue has been patched in version 5.8.1."}, {"lang": "es", "value": "Svelte devalue es una biblioteca de JavaScript que serializa valores en cadenas cuando JSON.stringify no es suficiente para la tarea. Desde la versi\u00f3n 5.6.3 hasta antes de la versi\u00f3n 5.8.1, devalue.parse podr\u00eda, debido a peculiaridades en algunos motores de JavaScript, ser inducido a asignar mucha m\u00e1s memoria de la necesaria al deserializar arrays dispersos, lo que lleva a un consumo excesivo de memoria. Este problema ha sido parcheado en la versi\u00f3n 5.8.1."}], "id": "CVE-2026-42570", "lastModified": "2026-08-21T13:17:53.800", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-42570", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-09T18:06:15.435480Z", "version": "2.0.3"}}]}, "published": "2026-06-09T17:17:07.253", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/sveltejs/devalue/commit/206ca6712fbc380a4571c59de9ab04b91110792d"}, {"source": "security-advisories@github.com", "tags": ["Product", "Release Notes"], "url": "https://github.com/sveltejs/devalue/releases/tag/v5.8.1"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/sveltejs/devalue/security/advisories/GHSA-77vg-94rm-hx3p"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:37272"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:57590"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/security/cve/CVE-2026-42570"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2487050"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42570.json"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-770"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}]}

{"bugzilla": {"description": "devalue: devalue: Excessive memory consumption via deserialization of sparse arrays", "id": "2487050", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2487050"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-770", "details": ["Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From version 5.6.3 to before version 5.8.1, devalue.parse could, due to quirks in some JavaScript engines, be convinced to allocate much more memory than was needed when deserializing sparse arrays, leading to excessive memory consumption. This issue has been patched in version 5.8.1.", "A flaw was found in devalue, a JavaScript library used for serializing values. Due to quirks in some JavaScript engines, the `devalue.parse` function could be exploited by a remote attacker when deserializing specially crafted sparse arrays. This could lead to excessive memory consumption, resulting in a Denial of Service (DoS) for the affected system."], "name": "CVE-2026-42570", "package_state": [{"cpe": "cpe:/a:redhat:podman_desktop:1", "fix_state": "Under investigation", "package_name": "rh-podman-desktop.git", "product_name": "Red Hat Build of Podman Desktop"}, {"cpe": "cpe:/a:redhat:trusted_artifact_signer:1", "fix_state": "Under investigation", "package_name": "rhtas/rekor-search-ui-rhel9", "product_name": "Red Hat Trusted Artifact Signer"}], "public_date": "2026-06-09T16:12:26Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-42570\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-42570\nhttps://github.com/sveltejs/devalue/commit/206ca6712fbc380a4571c59de9ab04b91110792d\nhttps://github.com/sveltejs/devalue/releases/tag/v5.8.1\nhttps://github.com/sveltejs/devalue/security/advisories/GHSA-77vg-94rm-hx3p"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.6.3,5.8.1)"}}], "enrichment": {"confidence": 93.0, "confidence_source": "matching", "scores": [{"score": 93.0, "source": "matching"}]}, "original": {"product": "devalue", "source": "cna", "vendor": "sveltejs"}, "product": "devalue", "vendor": "svelte"}], "created": "2026-06-09T17:45:10.149414+00:00", "updated": "2026-06-09T20:00:17.199735+00:00", "vendors": ["svelte", "svelte$PRODUCT$devalue"]}