CVE-2026-84042
Last modified
CVE-2026-84042 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A flaw was found in crun. When crun is built with libkrun and a container is started rootful with passt networking (krun.use_passt), crun can execute attacker-controlled payload from the container image with host root privileges. EPSS estimates a 0.10% chance of exploitation in the next 30 days.
Description
A flaw was found in crun. When crun is built with libkrun and a container is started rootful with passt networking (krun.use_passt), crun can execute attacker-controlled payload from the container image with host root privileges. The issue is a regression in crun 1.29. It affects crun >= 1.29
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | All versions |
| Red Hat | Red Hat Enterprise Linux 9 | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-84042?
How severe is CVE-2026-84042?
How do I fix CVE-2026-84042?
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-2026-84028The Bold Page Builder WordPress plugin before 5.9.9 does not…6.8
- CVE-2026-8403Improper neutralization of input during web page generation …6.1
- CVE-2026-84031IBM Guardium Data Protection 12.2 could allow a remote authe…9
- CVE-2026-84034IBM Guardium Data Protection 12.2 is vulnerable to a hardcod…8.8
- CVE-2026-84036IBM Guardium Data Protection 12.2 could allow a remote authe…7.4
- CVE-2026-8404An issue was discovered in Django 5.2 before 5.2.15 and 6.0 …5.3
- CVE-2026-84043The ePayco Payment Gateway for WooCommerce WordPress plugin …5.3
- CVE-2026-84044The Restaurant Menu and Food Ordering WordPress plugin befor…5.3
- CVE-2026-84045The E-cab Taxi Booking Manager for Woocommerce WordPress plu…5.3
- CVE-2026-84047The Album Cover Finder WordPress plugin through 0.7.0 does n…8.6
- CVE-2026-84048Joomla Extension - joomgalleryfriends.net - Unauthenticated …6.3
- CVE-2026-8405IBM Guardium Data Protection 12.2.1, and 12.2.2 's add-on fe…6.5
Are you affected by CVE-2026-84042?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST