CVE-2026-92708

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{"affected": [{"affectedData": [{"product": "devalue", "vendor": "sveltejs", "versions": [{"status": "affected", "version": ">= 5.1.0, < 5.9.3"}]}], "source": "security-advisories@github.com"}], "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. In versions 5.1.0 through 5.9.2, stringify and uneval functions serialize a typed array by emitting its entire backing ArrayBuffer rather than only the view, so serializing a Node Buffer, whose backing store is a process-wide shared pool, discloses up to 64 KB of unrelated process memory, including bytes from other in-flight requests. In a server-side-rendered framework such as SvelteKit or Nuxt, a public page whose load() returns a small Buffer, or that reads a small file, can therefore ship another user's request body or Authorization header in its HTML without authentication. Because this occurs during serialization, it fires on every such render and is not mitigated by the parse/unflatten prototype-pollution and denial-of-service guards, which only apply when parsing untrusted input. As a workaround, convert Node Buffer objects to Uint8Array before serialization. This issue has been fixed in version 5.9.3."}], "id": "CVE-2026-92708", "lastModified": "2026-09-23T20:17:22.253", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-92708", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-23T19:38:28.127737Z", "version": "2.0.3"}}]}, "published": "2026-09-18T20:17:30.150", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/sveltejs/devalue/commit/46dc877b3570dafb1cd3291b9bb48cecef8f7266"}, {"source": "security-advisories@github.com", "url": "https://github.com/sveltejs/devalue/releases/tag/v5.9.3"}, {"source": "security-advisories@github.com", "url": "https://github.com/sveltejs/devalue/security/advisories/GHSA-j22f-vq7h-c4qm"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-226"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "devalue: devalue: Cross-request process memory disclosure", "id": "2538811", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2538811"}, "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:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-201", "details": ["Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. In versions 5.1.0 through 5.9.2, stringify and uneval functions serialize a typed array by emitting its entire backing ArrayBuffer rather than only the view, so serializing a Node Buffer, whose backing store is a process-wide shared pool, discloses up to 64 KB of unrelated process memory, including bytes from other in-flight requests. In a server-side-rendered framework such as SvelteKit or Nuxt, a public page whose load() returns a small Buffer, or that reads a small file, can therefore ship another user's request body or Authorization header in its HTML without authentication. Because this occurs during serialization, it fires on every such render and is not mitigated by the parse/unflatten prototype-pollution and denial-of-service guards, which only apply when parsing untrusted input. As a workaround, convert Node Buffer objects to Uint8Array before serialization. This issue has been fixed in version 5.9.3.", "A flaw was found in devalue, a JavaScript library for serializing values. The `stringify` and `uneval` functions incorrectly serialize Node Buffers by emitting the entire backing `ArrayBuffer` instead of only the view. This vulnerability allows for the disclosure of up to 64 KB of unrelated process memory, potentially including sensitive data from other in-flight requests, without authentication. This can occur in server-side-rendered frameworks when a public page processes a small Buffer."], "name": "CVE-2026-92708", "package_state": [{"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-feature-server-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:trusted_artifact_signer:1", "fix_state": "Affected", "package_name": "rhtas/rekor-search-ui-rhel9", "product_name": "Red Hat Trusted Artifact Signer"}], "public_date": "2026-09-18T19:54:28Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-92708\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-92708\nhttps://github.com/sveltejs/devalue/commit/46dc877b3570dafb1cd3291b9bb48cecef8f7266\nhttps://github.com/sveltejs/devalue/releases/tag/v5.9.3\nhttps://github.com/sveltejs/devalue/security/advisories/GHSA-j22f-vq7h-c4qm"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.1.0,5.9.3)"}}], "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": "2026-09-19T16:00:13.971880+00:00", "updated": "2026-09-23T01:45:19.223607+00:00", "vendors": ["svelte", "svelte$PRODUCT$devalue"]}