CVE-2026-88753
Quick assessment
Affected
n/a n/a
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.
在 trentm markdown2 版本 v2.5.5 及更早版本中，lib/markdown2.py 文件里的 Markdown2.extract_metadata() 函数存在正则表达式拒绝服务（ReDoS）漏洞。攻击者可通过构造特定的 Markdown 文档，利用该漏洞导致拒绝服务（DoS）攻击。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2026-88753
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A Regular-Expression Denial of Service (ReDoS) in the Markdown2. extract_metadata() function (lib/markdown2.py) of trentm markdown2 through v2.5.5 allows attackers to cause a Denial of Service (DoS) via a crafted Markdown document.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
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II. Public POCs for CVE-2026-88753
| # | POC Description | Source Link | Shenlong Link |
|---|
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Proof of Concept for CVE-2026-88753 (1)
Same Patch Batch · n/a · 2026-10-15 · 14 CVEs total
| CVE-2026-106700 | 8.8 HIGH | ELADMIN v2.7及之前版本存在越权漏洞 |
| CVE-2026-106708 | 8.8 HIGH | XXL-JOB<=3.5.0用户管理控制器CSRF漏洞 |
| CVE-2026-106701 | 6.1 MEDIUM | ELADMIN <2.7 WebSocketServer XSS漏洞 |
| CVE-2026-106707 | 5.4 MEDIUM | XXL-JOB<=3.5.0-快照存储型XSS漏洞 |
| CVE-2026-106706 | 5.4 MEDIUM | XXL-JOB<=3.5.0 存储型XSS漏洞 |
| CVE-2026-104586 | WHM/cpanel插件AUTOM8N命令注入漏洞 | |
| CVE-2026-95179 | lottie-android <= 6.7.1 JSON解析递归拒绝服务漏洞 | |
| CVE-2026-95180 | AgentWeb v5.1.6及更早版本权限控制缺陷致信息泄露 | |
| CVE-2026-95155 | Jackson 1.x JSON深度嵌套导致拒绝服务漏洞 | |
| CVE-2026-52167 | AOC LC32D1320 v2.05 gensub栈溢出致DoS | |
| CVE-2026-78851 | Grav CMS 2.0.3-2.0.6目录遍历漏洞 | |
| CVE-2026-78850 | Matomo v5.11.2 SiteContentDetector 信息泄露漏洞 | |
| CVE-2026-36436 | BRPerfX 1.4.4.0配置信息泄露漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-88753
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