{"id":"CVE-2026-22774","aliases":["EUVD-2026-2790","GHSA-vw5p-8cq8-m7mv"],"status":"published","title":"devalue vulnerable to denial of service due to memory exhaustion in devalue.parse","description":"Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.3.0 to 5.6.1, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input from untrusted sources. This affects applications using devalue.parse on externally-supplied data. The root cause is the typed array hydration expecting an ArrayBuffer as input, but not checking the assumption before creating the typed array. This vulnerability is fixed in 5.6.2.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00625,"percentile":0.50443,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20","CWE-405"],"published":"2026-01-15T18:10:15Z","modified":"2026-10-28T02:30:42Z","fixes":[{"ecosystem":"npm","package":"devalue","fixed_in":["5.6.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"devalue","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.3.0"},{"last_affected":"5.6.1"},{"fixed":"5.6.2"}]}]},{"source":"osv","ecosystem":"npm","package":"devalue","ranges":[{"type":"SEMVER","events":[{"introduced":"5.3.0"},{"fixed":"5.6.2"}]}]}],"products":[{"vendor":"red hat","product":"red hat build of podman desktop - tech preview"},{"vendor":"red hat","product":"red hat trusted artifact signer 1.2"},{"vendor":"red hat","product":"red hat trusted artifact signer 1.3"},{"vendor":"svelte","product":"devalue"},{"vendor":"sveltejs","product":"devalue"}],"references":[{"url":"https://github.com/sveltejs/devalue/security/advisories/GHSA-vw5p-8cq8-m7mv","tags":["x_refsource_CONFIRM","Vendor Advisory","advisory","web"]},{"url":"https://github.com/sveltejs/devalue/commit/e46afa64dd2b25aa35fb905ba5d20cea63aabbf7","tags":["x_refsource_MISC","Patch","fix","web"]},{"url":"https://github.com/sveltejs/devalue/releases/tag/v5.6.2","tags":["x_refsource_MISC","Release Notes","web"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-22774","tags":["vdb-entry","x_refsource_REDHAT","advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2430095","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-22774.json","tags":["x_sadp-csaf-vex","web"]},{"url":"https://access.redhat.com/errata/RHSA-2026:2926","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:2144","tags":["vendor-advisory","x_refsource_REDHAT","advisory"]},{"url":"https://github.com/sveltejs/devalue/commit/11755849fa0634ae294a15ec0aef2f43efcad7c4","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-22774","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-vw5p-8cq8-m7mv"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22774.json","tags":["advisory"]},{"url":"https://github.com/sveltejs/devalue","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-22774","title":"devalue vulnerable to denial of service due to memory exhaustion in devalue.parse","description":"Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.3.0 to 5.6.1, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input from untrusted sources. This affects applications using devalue.parse on externally-supplied data. The root cause is the typed array hydration expecting an ArrayBuffer as input, but not checking the assumption before creating the typed array. This vulnerability is fixed in 5.6.2.","status":"published","published":"2026-01-15T18:53:21.963Z","modified":"2026-07-15T01:19:21.983Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-405","CWE-405"],"updated_at":"2026-11-02T13:39:05.585774Z"}],"euvd":[{"id":"EUVD-2026-2790","description":"Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.3.0 to 5.6.1, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input from untrusted sources. This affects applications using devalue.parse on externally-supplied data. The root cause is the typed array hydration expecting an ArrayBuffer as input, but not checking the assumption before creating the typed array. This vulnerability is fixed in 5.6.2.","status":"published","published":"2026-01-15T18:53:21Z","modified":"2026-07-15T01:19:21Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T18:19:55.318488Z"}],"ghsa":[{"id":"GHSA-vw5p-8cq8-m7mv","title":"Devalue is vulnerable to denial of service due to memory exhaustion in devalue.parse","description":"## Summary\n\nCertain inputs can cause `devalue.parse` to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input from untrusted sources. This affects applications using `devalue.parse` on externally-supplied data. The root cause is the typed array hydration expecting an `ArrayBuffer` as input, but not checking the assumption before creating the typed array.\n\n## Details\n\nThe parser's typed array hydration logic does not properly validate input before processing. Specially crafted inputs can cause disproportionate memory allocation or CPU usage on the receiving system.\n\n## Impact\n\nThis is a denial of service vulnerability affecting systems that use `devalue.parse` to handle data from potentially untrusted sources.\n\nAffected systems should upgrade to patched versions immediately.","status":"published","published":"2026-01-15T18:10:15Z","modified":"2026-01-15T22:33:39Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-20","CWE-405"],"updated_at":"2026-11-02T14:39:17.333958Z"}],"nvd":[{"id":"CVE-2026-22774","description":"Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.3.0 to 5.6.1, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input from untrusted sources. This affects applications using devalue.parse on externally-supplied data. The root cause is the typed array hydration expecting an ArrayBuffer as input, but not checking the assumption before creating the typed array. This vulnerability is fixed in 5.6.2.","status":"published","published":"2026-01-15T19:16:05.813Z","modified":"2026-07-15T02:18:35.62Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-405"],"updated_at":"2026-11-02T14:12:04.066712Z"}],"osv":[{"id":"CVE-2026-22774","title":"devalue vulnerable to denial of service due to memory exhaustion in devalue.parse","description":"Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.3.0 to 5.6.1, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input from untrusted sources. This affects applications using devalue.parse on externally-supplied data. The root cause is the typed array hydration expecting an ArrayBuffer as input, but not checking the assumption before creating the typed array. This vulnerability is fixed in 5.6.2.","status":"published","published":"2026-01-15T18:53:21.963Z","modified":"2026-10-28T02:30:42.967943697Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-405"],"updated_at":"2026-11-02T15:44:58.42038Z"},{"id":"GHSA-vw5p-8cq8-m7mv","title":"Devalue is vulnerable to denial of service due to memory exhaustion in devalue.parse","description":"## Summary\n\nCertain inputs can cause `devalue.parse` to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input from untrusted sources. This affects applications using `devalue.parse` on externally-supplied data. The root cause is the typed array hydration expecting an `ArrayBuffer` as input, but not checking the assumption before creating the typed array.\n\n## Details\n\nThe parser's typed array hydration logic does not properly validate input before processing. Specially crafted inputs can cause disproportionate memory allocation or CPU usage on the receiving system.\n\n## Impact\n\nThis is a denial of service vulnerability affecting systems that use `devalue.parse` to handle data from potentially untrusted sources.\n\nAffected systems should upgrade to patched versions immediately.","status":"published","published":"2026-01-15T18:10:15Z","modified":"2026-02-03T03:17:35.098687Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-20","CWE-405"],"updated_at":"2026-11-02T15:46:57.694388Z"}]}}