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CVE-2026-39911

Hashgraph Guardian through version 3.5.1, fixed in commit 45fbe2f, contains an unsandboxed JavaScript execution vulnerability in the Custom Logic policy block worker that allows authenticated Standard Registry users to execute arbitrary code by passing user-supplied JavaScript expressions directly to the Node.js Function() constructor without isolation. Attackers can import native Node.js modules to read arbitrary files from the container filesystem, access process environment variables containi
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f72ea6faf781e87ce78211ed31724167d2f938f2b261f4126a5dfb3720db0482
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:64702a60a7cda4521eed535f3fe1718a6a3a006c81726177c13eb5597ef64b90 · sha256:9297d051b7f2dfab… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"H…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:64702a60a7cda4521eed535f3fe1718a6a3a006c81726177c13eb5597ef64b90 · sha256:9297d051b7f2dfab… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"defaultStatus":"unknown","packageURL":"pkg:github/hashgraph/guardian","product":"guardian","repo":"https://github.com/hashgraph/guardian","vendor":"hashgraph","versions":[{"lessThanOrEqual":"3.5.1","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"45fbe2f7e0e8feee30105d42d66ed63fb6177ebe","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:64702a60a7cda4521eed535f3fe1718a6a3a006c81726177c13eb5597ef64b90 · sha256:9297d051b7f2dfab… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:64702a60a7cda4521eed535f3fe1718a6a3a006c81726177c13eb5597ef64b90 · sha256:9297d051b7f2dfab… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"H…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:64702a60a7cda4521eed535f3fe1718a6a3a006c81726177c13eb5597ef64b90 · sha256:9297d051b7f2dfab… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-668","description":"CWE-668: Exposure of Resource to Wrong Sphere","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:64702a60a7cda4521eed535f3fe1718a6a3a006c81726177c13eb5597ef64b90 · sha256:9297d051b7f2dfab… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"tags":["patch"],"url":"https://github.com/hashgraph/guardian/commit/45fbe2f7e0e8feee30105d42d66ed63fb6177ebe"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:64702a60a7cda4521eed535f3fe1718a6a3a006c81726177c13eb5597ef64b90 · sha256:9297d051b7f2dfab… · /containers/cna/references/1
{"tags":["issue-tracking"],"url":"https://github.com/hashgraph/guardian/pull/5929"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:64702a60a7cda4521eed535f3fe1718a6a3a006c81726177c13eb5597ef64b90 · sha256:9297d051b7f2dfab… · /containers/cna/references/0
{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/hashgraph-guardian-unsandboxed-javascript-execution-rce"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:64702a60a7cda4521eed535f3fe1718a6a3a006c81726177c13eb5597ef64b90 · sha256:9297d051b7f2dfab… · /containers/cna/references/2

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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