CVE-2024-58382— league/commonmark before 2.6.0 Denial of Service via Quadratic Complexity
Quick assessment
Affected
thephpleague commonmark
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
league/commonmark 2.6.0 之前的版本存在多项漏洞，其 Markdown 解析过程中存在多项式时间复杂度的缺陷，攻击者可借此引发拒绝服务（DoS）攻击。攻击者可以提交精心构造的 Markdown 输入，以触发最坏情况下的性能瓶颈；同时，并行发送多个请求会耗尽 CPU 资源和 PHP-FPM 进程，从而导致服务不可用。
Possible ATT&CK Techniques 2 AI
T1499 · Endpoint Denial of Service T1027 · Obfuscated Files or Information
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I. Basic Information for CVE-2024-58382
Vulnerability Information
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Vulnerability Title
league/commonmark before 2.6.0 Denial of Service via Quadratic Complexity
Source: CVE Program / CVE List V5
Vulnerability Description
league/commonmark versions before 2.6.0 contain polynomial time complexity vulnerabilities in Markdown parsing that allow attackers to cause denial of service. Attackers can submit carefully crafted Markdown inputs designed to trigger worst-case performance, and sending multiple requests in parallel exhausts CPU resources and PHP-FPM processes.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
算法复杂性
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| thephpleague | commonmark | 0 ~ 2.6.0 | - |
|
II. Public POCs for CVE-2024-58382
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2024-58382 (2)
IV. Related Vulnerabilities
Same product: commonmark
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CVE-2026-86435
commonmark 1.5.0 before 2.8.4 Denial of Service via Footnote -
CVE-2026-86434
commonmark 2.0.0 through 2.8.3 Denial of Service via Slug Co -
CVE-2026-86433
commonmark 1.5.0 before 2.8.4 Denial of Service via Attribut -
CVE-2026-86432
commonmark 2.0.0 before 2.8.4 Denial of Service via XML -
CVE-2026-86431
commonmark before 2.9.1 XSS via AttributesExtension form fee
Same vendor: thephpleague
-
CVE-2026-86435
commonmark 1.5.0 before 2.8.4 Denial of Service via Footnote -
CVE-2026-86433
commonmark 1.5.0 before 2.8.4 Denial of Service via Attribut -
CVE-2026-86434
commonmark 2.0.0 through 2.8.3 Denial of Service via Slug Co -
CVE-2026-86432
commonmark 2.0.0 before 2.8.4 Denial of Service via XML -
CVE-2026-86430
league/commonmark before 2.9.1 Denial of Service via parsing
Same weakness: CWE-407
-
CVE-2023-54395
PocketMine-MP before 4.12.5 Denial of Service via ModalFormR -
CVE-2026-86435
commonmark 1.5.0 before 2.8.4 Denial of Service via Footnote -
CVE-2026-86434
commonmark 2.0.0 through 2.8.3 Denial of Service via Slug Co -
CVE-2026-86433
commonmark 1.5.0 before 2.8.4 Denial of Service via Attribut -
CVE-2026-86430
league/commonmark before 2.9.1 Denial of Service via parsing
V. Comments for CVE-2024-58382
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