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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-25800— quinn-proto has remote memory exhaustion from unbounded out-of-order stream reassembly

Quick assessment

Affected
quinn-rs quinn
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.

quinn-rs Quinn是quinn-rs组织开源的一个 IETF QUIC 传输协议的纯 Rust、异步兼容实现。 quinn-rs Quinn 0.1.0版本至0.11.15之前版本存在资源管理错误漏洞，该漏洞源于Assembler组件在处理非连续流片段时产生高缓冲区开销，可能导致内存耗尽。

CVSS 7.5 · High EPSS 0.84% · P58

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
quinn-rs quinn >= 0.1.0, < 0.11.15 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-25800

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
quinn-proto has remote memory exhaustion from unbounded out-of-order stream reassembly
Source: CVE Program / CVE List V5
Vulnerability Description
Quinn is a pure-Rust, async-compatible implementation of the IETF QUIC transport protocol. Starting in version 0.1.0 and prior to version 0.11.15, the `Assembler` component that assembles unordered stream fragments into consecutive chunks of the stream incurs some overhead for non-contiguous fragments. Readers that read from a `RecvStream` in order (through an `AsyncRead` impl for example) will be sensitive to peers that send fragments while leaving out early parts of the stream, and in particular, fragments with many gaps (because these cannot be defragmented). In such a scenario, the receiving connection suffers from high buffer overhead, enabling memory exhaustion. Version 0.11.15 fixes the issue.
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
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
quinn-rs Quinn 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
quinn-rs Quinn是quinn-rs组织开源的一个 IETF QUIC 传输协议的纯 Rust、异步兼容实现。 quinn-rs Quinn 0.1.0版本至0.11.15之前版本存在资源管理错误漏洞，该漏洞源于Assembler组件在处理非连续流片段时产生高缓冲区开销，可能导致内存耗尽。
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
quinn-rs quinn >= 0.1.0, < 0.11.15 -

II. Public POCs for CVE-2026-25800

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
Upgrade to Pro+
claude_code · 7712 chars
GitHub 复现环境（可 clone 直接跑）
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-2026-25800

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-25800 (1)

Vendor Advisories for CVE-2026-25800 (2)

IV. Related Vulnerabilities

Same product: quinn
Same vendor: quinn-rs
Same weakness: CWE-770