CVE Explorer

CVE-2026-16498

The terraform-mcp-server before version 1.1.0 is vulnerable to a cross-tenant credential reuse issue in the streamable-HTTP stateless transport mode that may allow one user's Terraform token to be used to execute tool calls on behalf of subsequent users. This vulnerability, CVE-2026-16498, is fixed in terraform-mcp-server 1.1.0.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e1c2d00e0b6db65bca10878b325cb2e013f28129111d5ab6431fa59a3b4ab61a

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"product":"Tooling","repo":"https://github.com/hashicorp/terraform-mcp-server","vendor":"HashiCorp","versions":[{"lessThan":"1.1.0","status":"affected","version":"0.3.0","versionType":"semver"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:7fb2db5a4010dc51a598df4618d8c13315136355e50d109e8363c964067e964d · sha256:706fe84b4baffe93… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":10,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:7fb2db5a4010dc51a598df4618d8c13315136355e50d109e8363c964067e964d · sha256:706fe84b4baffe93… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-488","description":"CWE-488: Exposure of Data Element to Wrong Session","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:7fb2db5a4010dc51a598df4618d8c13315136355e50d109e8363c964067e964d · sha256:706fe84b4baffe93… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"url":"https://discuss.hashicorp.com/t/hcsec-2026-23-multiple-vulnerabilities-impacting-hashicorp-terraform-mcp-server/77606"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7fb2db5a4010dc51a598df4618d8c13315136355e50d109e8363c964067e964d · sha256:706fe84b4baffe93… · /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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