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 vie...
Product
sveltejs devalue vulnerabilities
7 published CVES affecting sveltejs devalue, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
- Total
- 7
- Critical
- 0
- High
- 5
- Medium
- 2
- Low
- 0
- Unscored
- 0
- CISA KEV
- 0
Latest sveltejs devalue CVEs
Newest publication first
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HighCVSS 7.5 EPSS 0.73%
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MediumCVSS 5.3 EPSS 0.51%
Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. Prior to 5.9.2, devalue.parse does not reject out-of-bounds indices that are greater than or equal to values.length in src/parse.js. A specially crafted un...
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HighCVSS 7.5 EPSS 0.40%
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 w...
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MediumCVSS 6.3 EPSS 0.47%
Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. In devalue v5.6.3 and earlier, devalue.parse and devalue.unflatten were susceptible to prototype pollution via maliciously crafted payloads. Successful exp...
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CVE-2026-22775 devalue vulnerable to denial of service due to memory/CPU exhaustion in devalue.parse
PublishedHighCVSS 7.5 EPSS 0.63%Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.1.0 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 system...
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CVE-2026-22774 devalue vulnerable to denial of service due to memory exhaustion in devalue.parse
PublishedHighCVSS 7.5 EPSS 0.63%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 system...
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HighCVSS 7.9 EPSS 0.37%
Svelte devalue is a utility library. Prior to version 5.3.2, a string passed to devalue.parse could represent an object with a proto property and devalue.parse does not check that an index is numeric. This could result in assigning prototypes to objects and properties, leading to...
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.