CVE-2026-1301

6.8 mediumEPSS 0.4%

Medium (6.8). EPSS 0.4% chance of exploitation in the next 30 days.

In builds with PubSub and JSON enabled, a crafted JSON message can cause the decoder to write beyond a heap-allocated array before authentication, reliably crashing the process and corrupting memory.

Severity

CVSS 4.0

6.8 medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2026-02-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-036-03

Check your stack JSON