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CVE-2026-39420

MaxKB is an open-source AI assistant for enterprise. In versions 2.7.1 and below, an incomplete sandbox protection mechanism allows an authenticated user with tool execution privileges to escape the LD_PRELOAD-based sandbox. By env command the attacker can clear the environment variables and drop the sandbox.so hook, leading to unrestricted Remote Code Execution (RCE) and network access. MaxKB restricts untrusted Python code execution via the Tool Debug API by injecting sandbox.so through the LD
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:19f3afceeb5e3e5db88f68e4e9a967b3145b91f9b9ac7da21f095867013142f4
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-78","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:51520338523f4a1c03b8e66a2a8a7226a1b0d3512c920c13d631b22e8ef9c8dd · sha256:c4221c1ea04e44e0… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-693","description":"CWE-693: Protection Mechanism Failure","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:51520338523f4a1c03b8e66a2a8a7226a1b0d3512c920c13d631b22e8ef9c8dd · sha256:c4221c1ea04e44e0… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"MaxKB","vendor":"1Panel-dev","versions":[{"status":"affected","version":"< 2.8.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:51520338523f4a1c03b8e66a2a8a7226a1b0d3512c920c13d631b22e8ef9c8dd · sha256:c4221c1ea04e44e0… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"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"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:51520338523f4a1c03b8e66a2a8a7226a1b0d3512c920c13d631b22e8ef9c8dd · sha256:c4221c1ea04e44e0… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-78","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:51520338523f4a1c03b8e66a2a8a7226a1b0d3512c920c13d631b22e8ef9c8dd · sha256:c4221c1ea04e44e0… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-693","description":"CWE-693: Protection Mechanism Failure","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:51520338523f4a1c03b8e66a2a8a7226a1b0d3512c920c13d631b22e8ef9c8dd · sha256:c4221c1ea04e44e0… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/1Panel-dev/MaxKB/commit/2d17b08e6b060329803754a05e806d0ddecf3fa8","tags":["x_refsource_MISC"],"url":"https://github.com/1Panel-dev/MaxKB/commit/2d17b08e6b060329803754a05e806d0ddecf3fa8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:51520338523f4a1c03b8e66a2a8a7226a1b0d3512c920c13d631b22e8ef9c8dd · sha256:c4221c1ea04e44e0… · /containers/cna/references/1
{"name":"https://github.com/1Panel-dev/MaxKB/releases/tag/v2.8.0","tags":["x_refsource_MISC"],"url":"https://github.com/1Panel-dev/MaxKB/releases/tag/v2.8.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:51520338523f4a1c03b8e66a2a8a7226a1b0d3512c920c13d631b22e8ef9c8dd · sha256:c4221c1ea04e44e0… · /containers/cna/references/2
{"name":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-7wgv-v2r3-7f7w","tags":["x_refsource_CONFIRM"],"url":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-7wgv-v2r3-7f7w"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:51520338523f4a1c03b8e66a2a8a7226a1b0d3512c920c13d631b22e8ef9c8dd · sha256:c4221c1ea04e44e0… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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