EVerest EvseManager phase-switch path has unsynchronized shared-state access race condition

EVerest is an EV charging software stack. Versions prior to 2026.02.0 have a data race (C++ UB) triggered by an A 1-phase ↔ 3-phase switch request (`ac_switch_three_phases_while_charging`) during charging/waiting executes concurrently with the state machine loop. Version 2026.02.0 contains a patch.

Problem type

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

Affected products

EVerest

everest-core

< 2026.02.0 - AFFECTED

References

https://github.com/EVerest/EVerest/security/advisories/GHSA-5528-wc53-v557

https://github.com/EVerest/EVerest/security/advisories/GHSA-5528-wc53-v557

x_refsource_CONFIRM

JSON source

https://cveawg.mitre.org/api/cve/CVE-2026-27814

Click to expand

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-27814",
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "dateUpdated": "2026-03-26T18:50:34.592Z",
    "dateReserved": "2026-02-24T02:31:33.268Z",
    "datePublished": "2026-03-26T16:27:54.306Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M",
        "dateUpdated": "2026-03-26T16:27:54.306Z"
      },
      "title": "EVerest EvseManager phase-switch path has unsynchronized shared-state access race condition",
      "descriptions": [
        {
          "lang": "en",
          "value": "EVerest is an EV charging software stack. Versions prior to 2026.02.0 have a data race (C++ UB) triggered by an A 1-phase ↔ 3-phase switch request (`ac_switch_three_phases_while_charging`) during charging/waiting executes concurrently with the state machine loop. Version 2026.02.0 contains a patch."
        }
      ],
      "affected": [
        {
          "vendor": "EVerest",
          "product": "everest-core",
          "versions": [
            {
              "version": "< 2026.02.0",
              "status": "affected"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')",
              "cweId": "CWE-362",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://github.com/EVerest/EVerest/security/advisories/GHSA-5528-wc53-v557",
          "name": "https://github.com/EVerest/EVerest/security/advisories/GHSA-5528-wc53-v557",
          "tags": [
            "x_refsource_CONFIRM"
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L",
            "attackVector": "ADJACENT_NETWORK",
            "attackComplexity": "HIGH",
            "privilegesRequired": "NONE",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "availabilityImpact": "LOW",
            "baseScore": 4.2,
            "baseSeverity": "MEDIUM"
          }
        }
      ]
    },
    "adp": [
      {
        "providerMetadata": {
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP",
          "dateUpdated": "2026-03-26T18:50:34.592Z"
        },
        "title": "CISA ADP Vulnrichment",
        "metrics": [
          {}
        ]
      }
    ]
  }
}