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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-3945— tinyproxy Integer Overflow in HTTP Chunked Transfer-Encoding Parser Leading to Denial of Service

Quick assessment

Affected
tinyproxy tinyproxy
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.

Tinyproxy是Tinyproxy开源的一个小型、高效的 HTTP/SSL 代理守护程序。 Tinyproxy 1.11.3及之前版本存在安全漏洞，该漏洞源于HTTP分块传输编码解析器存在整数溢出，可能导致拒绝服务。

CVSS 7.5 · High EPSS 1.04% · P63

Affected Version Matrix 1

VendorProduct Version RangeStatus
tinyproxy tinyproxy <=1.11.3 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-3945

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
tinyproxy Integer Overflow in HTTP Chunked Transfer-Encoding Parser Leading to Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
An integer overflow vulnerability in the HTTP chunked transfer encoding parser in tinyproxy up to and including version 1.11.3 allows an unauthenticated remote attacker to cause a denial of service (DoS). The issue occurs because chunk size values are parsed using strtol without properly validating overflow conditions (e.g., errno == ERANGE).
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
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
Tinyproxy 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tinyproxy是Tinyproxy开源的一个小型、高效的 HTTP/SSL 代理守护程序。 Tinyproxy 1.11.3及之前版本存在安全漏洞，该漏洞源于HTTP分块传输编码解析器存在整数溢出，可能导致拒绝服务。
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
tinyproxy tinyproxy <=1.11.3 -

II. Public POCs for CVE-2026-3945

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7570 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-2026-3945

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-3945 (3)

Vendor Pages for CVE-2026-3945 (1)

Other References for CVE-2026-3945 (1)

IV. Related Vulnerabilities

Same product: tinyproxy
Same vendor: tinyproxy
Same weakness: CWE-190

V. Comments for CVE-2026-3945

No comments yet

Leave a comment