Buffer overflow in Opennav Nav2
CVE-2026-26011
navigation2 is a ROS 2 Navigation Framework and System. In 1.3.11 and earlier, a critical heap out-of-bounds write vulnerability exists in Nav2 AMCL's particle filter clustering logic. By publishing a single crafted geometry_msgs/PoseWithC…
Vulnerability class: Buffer Overflow
EPSS: 0.005 (40.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Opennav Nav2
- Ros-navigation Navigation2 — versions <= 1.3.11
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-26011?
- CVE-2026-26011 is a critical-severity vulnerability in Opennav Nav2, classified under Heap-based Buffer Overflow. CVSS score: 9.8/10. Published 2026-02-12.
- How severe is CVE-2026-26011?
- Critical severity. CVSS v3 base score is 9.8 out of 10.