Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-46679— libp2p: Memory DoS via subscription flood of unique topics

Quick assessment

Affected
libp2p js-libp2p
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

libp2p是libp2p开源的一个模块化点对点网络框架。 libp2p 15.0.23之前版本存在输入验证错误漏洞，该漏洞源于@libp2p/gossipsub中的三个遗漏允许单个未经身份验证的节点耗尽Node.js堆。

CVSS 7.5 · High EPSS 0.46% · P38

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 1

VendorProduct Version RangeStatus
libp2p js-libp2p < 15.0.23 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-46679

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
libp2p: Memory DoS via subscription flood of unique topics
Source: CVE Program / CVE List V5
Vulnerability Description
libp2p is a JavaScript Implementation of libp2p networking stack. Prior to version 15.0.23, three cooperating omissions in @libp2p/gossipsub allow an unauthenticated single peer to exhaust the Node.js heap of any gossipsub node with default options. This issue has been patched in version 15.0.23.
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
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
libp2p 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libp2p是libp2p开源的一个模块化点对点网络框架。 libp2p 15.0.23之前版本存在输入验证错误漏洞，该漏洞源于@libp2p/gossipsub中的三个遗漏允许单个未经身份验证的节点耗尽Node.js堆。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
libp2p js-libp2p < 15.0.23 -

II. Public POCs for CVE-2026-46679

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9600 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-46679

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-46679 (1)

IV. Related Vulnerabilities

Same product: js-libp2p
Same vendor: libp2p
Same weakness: CWE-20

V. Comments for CVE-2026-46679

No comments yet

Leave a comment