CVE-2026-33009

EVerest: MQTT Switch-Phases Command Data Race Causing Charger State Corruptio

State: Published
Severity: 8.2 High
Published: Mar 26, 2026
Updated: Mar 28, 2026
Reserved: Mar 17, 2026

Description

EVerest is an EV charging software stack. Versions prior to 2026.02.0 have a data race leading to C++ UB (potential memory corruption). This is triggered by an MQTT `everest_external/nodered/{connector}/cmd/switch_three_phases_while_charging` message and results in `Charger::shared_context` / `internal_context` accessed concurrently without lock. Version 2026.02.0 contains a patch.

Scores

CVSS	Score	Vector	Source
3.1	8.2 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H	GitHub_M

Weaknesses

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Affected Products

Product	Versions
everest-coreEVerest	< 2026.02.0Affected

References

https://github.com/EVerest/EVerest/security/advisories/GHSA-33qh-fg6f-jjx5

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