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CVE-2026-34217

SandboxJS is a JavaScript sandboxing library. Prior to 0.8.36, a scope modification vulnerability exists in @nyariv/sandboxjs. The vulnerability allows untrusted sandboxed code to leak internal interpreter objects through the new operator, exposing sandbox scope objects in the scope hierarchy to untrusted code; an unexpected and undesired exploit. While this could allow modifying scopes inside the sandbox, code evaluation remains sandboxed and prototypes remain protected throughout the execution
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3e6dc6bcc48789c9b19a5f0451d8f283179cb4d26ddb9a021e7d9837961a088e
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"SandboxJS","vendor":"nyariv","versions":[{"status":"affected","version":"< 0.8.36"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b6bc243173e86b4deed34f3187d28795712caf48e62ffaec43b7536ed8ffcde8 · sha256:09cbb1aada0d4e66… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b6bc243173e86b4deed34f3187d28795712caf48e62ffaec43b7536ed8ffcde8 · sha256:09cbb1aada0d4e66… · /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:b6bc243173e86b4deed34f3187d28795712caf48e62ffaec43b7536ed8ffcde8 · sha256:09cbb1aada0d4e66… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/nyariv/SandboxJS/security/advisories/GHSA-hg73-4w7g-q96w","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nyariv/SandboxJS/security/advisories/GHSA-hg73-4w7g-q96w"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b6bc243173e86b4deed34f3187d28795712caf48e62ffaec43b7536ed8ffcde8 · sha256:09cbb1aada0d4e66… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/nyariv/SandboxJS/security/advisories/GHSA-hg73-4w7g-q96w"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b6bc243173e86b4deed34f3187d28795712caf48e62ffaec43b7536ed8ffcde8 · sha256:09cbb1aada0d4e66… · /containers/adp/0/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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