vet MCP Server SSE Transport DNS Rebinding Vulnerability

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

vet is an open source software supply chain security tool. Versions 1.12.4 and below are vulnerable to a DNS rebinding attack due to lack of HTTP Host and Origin header validation. Data from the vet scan sqlite3 database may be exposed to remote attackers when vet is used as an MCP server in SSE mode with default ports through the sqlite3 query MCP tool. This issue is fixed in version 1.12.5.

Source published

29 Sep 2025 21:51:31 UTC

Source modified

30 Sep 2025 14:49:25 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

CVE Program Terms of Use

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · 2.1 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

vet is an open source software supply chain security tool. Versions 1.12.4 and below are vulnerable to a DNS rebinding attack due to lack of HTTP Host and Origin header validation. Data from the vet scan sqlite3 database may be exposed to remote attackers when vet is used as an MCP server in SSE mode with default ports through the sqlite3 query MCP tool. This issue is fixed in version 1.12.5.

Source published

Sep 29, 2025, 9:51:31 PM (timezone not stated)

Source modified

Sep 30, 2025, 2:49:25 PM (timezone not stated)

Observed here

9 Nov 2026 03:14:33 UTC

Source terms

ENISA EUVD · source terms and attribution apply

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 4.0 · 2.1 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

vet is an open source software supply chain security tool. Versions 1.12.4 and below are vulnerable to a DNS rebinding attack due to lack of HTTP Host and Origin header validation. Data from the vet scan sqlite3 database may be exposed to remote attackers when vet is used as an MCP server in SSE mode with default ports through the sqlite3 query MCP tool. This issue is fixed in version 1.12.5.

Source published

29 Sep 2025 22:15:36 UTC

Source modified

9 Oct 2026 09:10:00 UTC

Observed here

25 Oct 2026 03:17:18 UTC

Source terms

NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · [email protected] · Secondary · 2.1 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

SafeDep `vet` is vulnerable to a DNS rebinding attack due to lack of HTTP `Host` and `Origin` header validation. To exploit this vulnerability following conditions must be met: 1. A `vet` scan is executed and reports are saved as `sqlite3` database 2. A `vet` MCP server is running on default port with SSE transport that has access to the report database 3. The attacker lures the victim to attacker controlled website 4. Attacker leverages DNS rebinding to access `vet` SSE server on `127.0.0.1` through the website 5. Attacker uses MCP tools to read information from report database ### Impact Data from `vet` scan sqlite3 database may be exposed to remote attackers when `vet` is used as an MCP server in SSE mode with default ports through the sqlite3 query MCP tool. ### Patches * `v1.12.5` is released that patches the issue with `Host` and `Origin` header allow list and validation ### Workarounds * Use `stdio` (default) transport for SSE server

Source published

29 Sep 2025 16:28:49 UTC

Source modified

23 Oct 2025 20:21:11 UTC

Observed here

24 Oct 2026 13:19:41 UTC

Source terms

GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V4 · CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Publisher rating · LOW

vet MCP Server SSE Transport DNS Rebinding Vulnerability in github.com/safedep/vet

Source published

23 Oct 2025 16:25:09 UTC

Source modified

3 Mar 2026 04:56:56 UTC

Observed here

24 Oct 2026 13:19:41 UTC

Source terms

OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.