CVE Explorer

CVE-2026-64651

The `@ai-sdk/harness-opencode` tool connects HarnessAgent to OpenCode through a sandboxed bridge. Prior to version 1.0.28, the tool relay authorizes requests from any process whose command line contains an allowed helper script path (`host-tool-mcp.mjs`). This allows untrusted code executing in the sandbox to invoke arbitrary host-exposed tools including secret lookups, deployment operations, and cloud API calls without a corresponding model-authorized tool-call event. Exploitation requires a Li

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:619cfc928e8c62f12786ed6bb50a3ecbd48db8de9aa79f5ecd9256a4db44a3ba

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"@ai-sdk/harness-opencode","vendor":"vercel","versions":[{"status":"affected","version":"< 1.0.29"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:407679ca81ee04009be8197f93fed9115568d2d2462d75b1a5afa60b02922d08 · sha256:e24ca24b8097db58… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":6.3,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:407679ca81ee04009be8197f93fed9115568d2d2462d75b1a5afa60b02922d08 · sha256:e24ca24b8097db58… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:407679ca81ee04009be8197f93fed9115568d2d2462d75b1a5afa60b02922d08 · sha256:e24ca24b8097db58… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/vercel/ai/pull/17105","tags":["x_refsource_MISC"],"url":"https://github.com/vercel/ai/pull/17105"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:407679ca81ee04009be8197f93fed9115568d2d2462d75b1a5afa60b02922d08 · sha256:e24ca24b8097db58… · /containers/cna/references/1

{"name":"https://github.com/vercel/ai/security/advisories/GHSA-g48p-5rr5-8rgq","tags":["x_refsource_CONFIRM"],"url":"https://github.com/vercel/ai/security/advisories/GHSA-g48p-5rr5-8rgq"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:407679ca81ee04009be8197f93fed9115568d2d2462d75b1a5afa60b02922d08 · sha256:e24ca24b8097db58… · /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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