CVE-2026-79918

Description

MaxKB is an open-source AI assistant for enterprise. Prior to version 2.10.6-lts, the ToolExecutor LD_PRELOAD sandbox hooks execve, execvpe, and execveat to prevent subprocess creation but does not hook fexecve. An authenticated attacker able to execute tool code can call fexecve to start a process outside the sandbox's intended subprocess policy. This issue is fixed in version 2.10.6-lts.

Overview

State: PUBLISHED
Assigner (CNA): GitHub_M
CVSS severity: MEDIUM
CVSS score: 6.3 / 10
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Effective score: 6.3 / 10 MEDIUM source: CNA overview
CWE(s): CWE-693
Reserved: 2026-08-25
Published: 2026-09-21 20:47 UTC
Last updated: 2026-09-21 20:47 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/79xxx/CVE-2026-79918.json

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-09-21 21:17:12 UTC
NVD last modified: 2026-09-21 21:17:12 UTC
NVD CVSS v3.1: 6.3 / 10 MEDIUM source: security-advisories@github.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Exploitability subscore: 2.8 / 10
Impact subscore: 3.4 / 10

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-84164
Assigner: GitHub_M
Published: Sep 21, 2026, 8:47:13 PM
Updated: Sep 21, 2026, 8:47:13 PM
EUVD base score (CVSS 3.1): 6.3 / 10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
EUVD-reported EPSS: 0.0000
Vendors: 1Panel-dev
Products: MaxKB (< 2.10.6-lts)

ENISA description: MaxKB is an open-source AI assistant for enterprise. Prior to version 2.10.6-lts, the ToolExecutor LD_PRELOAD sandbox hooks execve, execvpe, and execveat to prevent subprocess creation but does not hook fexecve. An authenticated attacker able to execute tool code can call fexecve to start a process outside the sandbox's intended subprocess policy. This issue is fixed in version 2.10.6-lts.

EUVD references (3)

Affected products (1)

Vendor	Product	Versions	Platforms
1Panel-dev	MaxKB	`< 2.10.6-lts` (affected)	—

Vendor references (3)

References embedded in the original CVE record by the assigning CNA.

https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-9mh9-v949-fwqh x_refsource_CONFIRM
https://github.com/1Panel-dev/MaxKB/commit/6fa7947a85030b87977c4026f33af11ca10dd1e6 x_refsource_MISC
https://github.com/1Panel-dev/MaxKB/releases/tag/v2.10.6-lts x_refsource_MISC

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (3)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://github.com/1Panel-dev/MaxKB/commit/6fa7947a85030b87977c4026f33af11ca10dd1e6 security-advisories@github.com
https://github.com/1Panel-dev/MaxKB/releases/tag/v2.10.6-lts security-advisories@github.com
https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-9mh9-v949-fwqh security-advisories@github.com

Remediations (10)

Microsoft Update Catalog

web:catalog.update.microsoft.com

Welcome to the Microsoft Update Catalog site. We want your feedback! Visit our newsgroup or send us an email to provide us with your thoughts and suggestions. To get started using the site, enter in your search terms in the Search box above or visit our FAQ for search tips. |Newsgroup|Send us your feedback

2026-09-22 17:09 UTC
Security Update Guide - Microsoft

web:msrc.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-09-22 17:09 UTC
Security Update Guide - Microsoft Security Response Center

web:msrc.microsoft.com

Access Microsoft Security Response Center's guide to address vulnerabilities, manage security risks, and keep your systems protected with the latest updates.

2026-09-22 17:09 UTC
Cisco Advance Notification for Publication of September 16, 2026 ...

web:sec.cloudapps.cisco.com

On September 16, 2026 , the Cisco Product Security Incident Response Team (PSIRT) published the advisories that are listed in the following tables. To remediate these vulnerabilities, Cisco strongly recommends that customers upgrade to the fixed software that is indicated in the advisories. For more information about changes in Cisco PSIRT vulnerability disclosure, see Strengthening the ...

2026-09-22 17:09 UTC
Microsoft Patch Tracker (September 2026): Exploit-Ranked | Senserva

web:senserva.com

Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.

2026-09-22 17:09 UTC
SAP Security Patch Day - April 2026

web:support.sap.com

SAP security patch day bulletin This post shares the information on security notes that remediate vulnerabilities discovered in SAP products. SAP strongly recommends that the customer visits the support portal and applies patches on priority to protect their SAP landscape. On 14 th of April 2026 , SAP security patch day saw the release of 19 new security notes. There is 1 update to previously ...

2026-09-22 17:09 UTC
SAP Security Patch Day - June 2026

web:support.sap.com

SAP security Patch Day Bulletin This post shares the information on security notes that remediate vulnerabilities discovered in SAP products. SAP strongly recommends that the customer visits the support portal and applies patches on priority to protect their SAP landscape. On 9th of June 2026 , SAP security patch day saw the release of 15 new security notes.

2026-09-22 17:09 UTC
The 8 Best Automated Vulnerability Remediation Tools in 2026

web:www.openhands.dev

Compare 8 automated vulnerability remediation tools for 2026 on fixes, prioritization, integrations, and deployment control.

2026-09-22 17:09 UTC
Oracle Critical Patch Update Advisory - April 2026

web:www.oracle.com

This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-22 17:09 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-22 17:09 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-79918.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "MaxKB",
          "vendor": "1Panel-dev",
          "versions": [
            {
              "status": "affected",
              "version": "< 2.10.6-lts"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "MaxKB is an open-source AI assistant for enterprise. Prior to version 2.10.6-lts, the ToolExecutor LD_PRELOAD sandbox hooks execve, execvpe, and execveat to prevent subprocess creation but does not hook fexecve. An authenticated attacker able to execute tool code can call fexecve to start a process outside the sandbox's intended subprocess policy. This issue is fixed in version 2.10.6-lts."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-693",
              "description": "CWE-693: Protection Mechanism Failure",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-21T20:47:13.575Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-9mh9-v949-fwqh",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-9mh9-v949-fwqh"
        },
        {
          "name": "https://github.com/1Panel-dev/MaxKB/commit/6fa7947a85030b87977c4026f33af11ca10dd1e6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/1Panel-dev/MaxKB/commit/6fa7947a85030b87977c4026f33af11ca10dd1e6"
        },
        {
          "name": "https://github.com/1Panel-dev/MaxKB/releases/tag/v2.10.6-lts",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/1Panel-dev/MaxKB/releases/tag/v2.10.6-lts"
        }
      ],
      "source": {
        "advisory": "GHSA-9mh9-v949-fwqh",
        "discovery": "UNKNOWN"
      },
      "title": "MaxKB: Sandbox escape via unhooked fexecve"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-79918",
    "datePublished": "2026-09-21T20:47:13.575Z",
    "dateReserved": "2026-08-25T14:59:32.746Z",
    "dateUpdated": "2026-09-21T20:47:13.575Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}