CVE-2026-40039
Last modified
CVE-2026-40039 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. Pachno 1.0.6 contains an open redirection vulnerability that allows attackers to redirect users to arbitrary external websites by manipulating the return_to parameter. Attackers can craft malicious login URLs with unvalidated return_to values to conduct phishing attacks and steal user credentials.. EPSS estimates a 0.34% chance of exploitation in the next 30 days.
Description
Pachno 1.0.6 contains an open redirection vulnerability that allows attackers to redirect users to arbitrary external websites by manipulating the return_to parameter. Attackers can craft malicious login URLs with unvalidated return_to values to conduct phishing attacks and steal user credentials.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-40039?
How severe is CVE-2026-40039?
How do I fix CVE-2026-40039?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-40033FreeRDP before 3.26.0 contains a heap-buffer-overflow vulner…8.8
- CVE-2026-40034gix-submodule before 0.29.0 (gitoxide before 0.5.21, gix bef…8.5
- CVE-2026-40035Unfurl through 2025.08 contains an improper input validation…9.3
- CVE-2026-40036Unfurl before 2026.04 contains an unbounded zlib decompressi…8.7
- CVE-2026-40037OpenClaw before 2026.3.31 (patched in 2026.4.8) contains a r…7.1
- CVE-2026-40038Pachno 1.0.6 contains a stored cross-site scripting vulnerab…7.2
- CVE-2026-4004The Task Manager plugin for WordPress is vulnerable to arbit…6.5
- CVE-2026-40040Pachno 1.0.6 contains an unrestricted file upload vulnerabil…8.8
- CVE-2026-40041Pachno 1.0.6 contains a cross-site request forgery vulnerabi…5.3
- CVE-2026-40042Pachno 1.0.6 contains an XML external entity injection vulne…9.8
- CVE-2026-40043Pachno 1.0.6 contains an authentication bypass vulnerability…7.1
- CVE-2026-40044Pachno 1.0.6 contains a deserialization vulnerability that a…9.8
Are you affected by CVE-2026-40039?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
