MeldSecurity
Press Enter to search
CVE Database & Search →
Sign In Get Started

CVE-2026-25961

🔴 HIGH

SumatraPDF is a multi-format reader for Windows. In 3.5.0 through 3.5.2, SumatraPDF's update mechanism disables TLS hostname verification (INTERNET_FLAG_IGNORE_CERT_CN_INVALID) and executes installers...

Published
Feb 09, 2026
Last Modified
Feb 10, 2026
Views
6
Bookmarks
0

Description

Request Expert Review

SumatraPDF is a multi-format reader for Windows. In 3.5.0 through 3.5.2, SumatraPDF's update mechanism disables TLS hostname verification (INTERNET_FLAG_IGNORE_CERT_CN_INVALID) and executes installers without signature checks. A network attacker with any valid TLS certificate (e.g., Let's Encrypt) can intercept the update check request, inject a malicious installer URL, and achieve arbitrary code execution.

CVSS Scores

CVSS 3.1 7.5
7.5
HIGH
CVSS 2.0 7.5

References

github.com

Additional Information

Source
security-advisories@github.com
State
Undergoing analysis

Related CVEs

CVE-2026-3288

HIGH

A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/rewrite-target` Ingress annotation can be used to inject confi...

Score: 8.8

CVE-2026-31816

CRITICAL

Budibase is a low code platform for creating internal tools, workflows, and admin panels. In 3.31.4 and earlier, the Budibase server's authorized() mi...

Score: 9.1

CVE-2026-30240

CRITICAL

Budibase is a low code platform for creating internal tools, workflows, and admin panels. In 3.31.5 and earlier, a path traversal vulnerability in the...

Score: 9.6

CVE-2026-25960

HIGH

vLLM is an inference and serving engine for large language models (LLMs). The SSRF protection fix for CVE-2026-24779 add in 0.15.1 can be bypassed in...

Score: 7.1

CVE-2026-25737

HIGH

Budibase is a low code platform for creating internal tools, workflows, and admin panels. In 3.24.0 and earlier, an arbitrary file upload vulnerabilit...

Score: 8.9

CVE-2025-15603

LOW

A security vulnerability has been detected in open-webui up to 0.6.16. Affected is an unknown function of the file backend/start_windows.bat of the co...

Score: 3.7

Share CVE-2026-25961

Share on Social Media

Copy Link

Embed Code

Request Expert Analysis

Request a professional security analysis for CVE-2026-25961 from our verified experts.

Credits System

Use your credits to get expert analysis from verified security professionals. Purchase more credits anytime!

Add 3 credits for accelerated delivery

Base Cost: 8 credits
Priority Upgrade: + credits
SLA Acceleration: +3 credits
Total Cost:
Your Balance:

Insufficient Credits

You need more credits to submit this request.

Buy Credits

Report Analysis