Improper handling of CSS at-rules in lettersanitizer

CAO 7.5CVE-2022-31103 · GHSA-7r3r-gq8p-v9jj · Công bố 27/06/2022 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2022-31103 là lỗ hổng mức CAO (CVSS 7.5) ảnh hưởng lettersanitizer (lettersanitizer project), lettersanitizer.
Xác suất bị khai thác trong 30 ngày tới (EPSS): 1.5%, cao hơn 74.8% các lỗ hổng khác.
Cách xử lý: cập nhật lên 1.0.2 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
lettersanitizer lettersanitizer_project	`< 1.0.2`	`1.0.2`
lettersanitizer npm	`< 1.0.2`	`1.0.2`

Mô tả

Impact

All versions of lettersanitizer below 1.0.2 are affected by a denial of service issue when processing a CSS at-rule @keyframes.

This package is depended on by react-letter, therefore everyone using react-letter is also at risk.

Patches

The problem has been patched in version 1.0.2.

Workarounds

There is no workaround besides upgrading.

References

The issue was originally reported in the react-letter repository: https://github.com/mat-sz/react-letter/issues/17

For more information

If you have any questions or comments about this advisory:

Open an issue in lettersanitizer
Email me at [email protected]

Mô tả của NVD

lettersanitizer is a DOM-based HTML email sanitizer for in-browser email rendering. All versions of lettersanitizer below 1.0.2 are affected by a denial of service issue when processing a CSS at-rule `@keyframes`. This package is depended on by [react-letter](https://github.com/mat-sz/react-letter), therefore everyone using react-letter is also at risk. The problem has been patched in version 1.0.2.