要点
- CVE-2026-42570 是影响 devalue (svelte), devalue 的高危 (CVSS 7.5)漏洞。
- 未来 30 天内被利用的概率（EPSS）：0.40%，高于 33.9% 的漏洞。
- 修复：升级到 5.8.1 或更高版本。
| Package | Affected versions | Patched versions |
|---|
| devalue | ≥ 5.6.3, < 5.8.1
| 5.8.1
|
| devalue npm | ≥ 5.6.3, < 5.8.1
| 5.8.1
|
Description
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.
NVD description
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.
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