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Description

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.

PUBLISHED Reserved 2026-01-21 | Published 2026-02-05 | Updated 2026-02-05 | Assigner icscert




MEDIUM: 6.8CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-787 Out-of-bounds Write

Product status

Default status
unaffected

1.5-rc1 (custom) before 1.5-rc2
affected

Credits

Andrew Fasano of NIST CAISI reported this vulnerability to CISA. finder

References

www.cisa.gov/news-events/ics-advisories/icsa-26-036-03 government-resource

cve.org (CVE-2026-1301)

nvd.nist.gov (CVE-2026-1301)

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