CVE-2021-43838

Katalog CVE

CVSS 7.5 · High EPSS 1,4%

Kerentanan Uncontrolled Resource Consumption pada jsx-slack project jsx-slack. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

jsx-slack is a library for building JSON objects for Slack Block Kit surfaces from JSX. In versions prior to 4.5.1 users are vulnerable to a regular expression denial-of-service (ReDoS) attack. If attacker can put a lot of JSX elements into `<blockquote>` tag, an internal regular expression for escaping characters may consume an excessive amount of computing resources. jsx-slack v4.5.1 has patched to a regex for escaping blockquote characters. Users are advised to upgrade as soon as possible.

Rincian

Terbit di NVD

17 Desember 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-400: Uncontrolled Resource Consumption
CWE-1333: Inefficient Regular Expression Complexity

EPSS (30 hari)

1,4% peluang dieksploitasi; lebih tinggi dari 72,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/yhatt/jsx-slack/commit/36e4a10405e4c7745333e245fcc5029c02c7065d patch · advisory pihak ketiga
• https://github.com/yhatt/jsx-slack/security/advisories/GHSA-55xv-f85c-248q exploit · patch · advisory pihak ketiga