175 lines
7.1 KiB
JSON
175 lines
7.1 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-108698",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"assignerShortName": "VulnCheck",
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"dateReserved": "2026-10-10T23:08:36.107Z",
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"datePublished": "2026-10-11T13:25:58.805Z",
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"dateUpdated": "2026-10-13T16:59:55.905Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"shortName": "VulnCheck",
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"dateUpdated": "2026-10-11T13:25:58.805Z"
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},
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"datePublic": "2026-10-11T00:00:00.000Z",
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"title": "hyper-mcp through 0.8.3 OCI Plugin Signature Verification TOCTOU Race Condition",
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"descriptions": [
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{
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"lang": "en",
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"value": "hyper-mcp through 0.8.3 contains a signature verification bypass vulnerability in load_wasm in src/wasm/oci.rs that verifies the Cosign signature of a separately resolved tag rather than the loaded manifest. Attackers controlling registry responses for the tag can serve an unsigned malicious manifest to the loader and a signed one to Cosign, executing unsigned WebAssembly plugins with configured host capabilities."
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"description": "Time-of-check Time-of-use (TOCTOU) Race Condition",
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"cweId": "CWE-367",
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"type": "CWE"
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "hyper-mcp-rs",
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"product": "hyper-mcp",
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"defaultStatus": "unaffected",
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"versions": [
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{
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"version": "0",
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"lessThanOrEqual": "0.8.3",
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"status": "affected",
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"versionType": "semver"
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}
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],
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"packageURL": "pkg:cargo/hyper-mcp",
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"repo": "https://github.com/hyper-mcp-rs/hyper-mcp"
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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"cvssV4_0": {
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"version": "4.0",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "LOW",
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"vulnIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 8.3,
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"baseSeverity": "HIGH"
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}
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},
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{
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"format": "CVSS",
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N",
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"attackVector": "NETWORK",
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"attackComplexity": "HIGH",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "LOW",
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"integrityImpact": "HIGH",
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"availabilityImpact": "NONE",
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"baseScore": 6.5,
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"baseSeverity": "MEDIUM"
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}
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}
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],
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"references": [
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{
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"url": "https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/hyper-mcp-oci-signature-manifest-toctou",
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"tags": [
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"third-party-advisory"
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]
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},
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{
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"url": "https://github.com/hyper-mcp-rs/hyper-mcp/blob/v0.8.3/src/wasm/oci.rs#L79-L148",
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"tags": [
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"technical-description"
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]
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},
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{
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"url": "https://github.com/hyper-mcp-rs/hyper-mcp/blob/v0.8.3/src/wasm/oci.rs#L193-L224",
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"tags": [
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"technical-description"
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]
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},
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{
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"url": "https://github.com/hyper-mcp-rs/hyper-mcp",
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"tags": [
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"product"
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]
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},
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{
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"name": "VulnCheck Advisory: hyper-mcp through 0.8.3 OCI Plugin Signature Verification TOCTOU Race Condition",
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"tags": [
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"third-party-advisory"
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],
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"url": "https://www.vulncheck.com/advisories/hyper-mcp-through-0.8.3-oci-plugin-signature-verification-toctou-race-condition"
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "hieuPenguinnn",
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"type": "finder"
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}
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],
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"x_generator": {
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"engine": "vulncheck-endgame"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-10-13T15:49:29.148966Z",
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"id": "CVE-2026-108698",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-13T16:59:55.905Z"
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}
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}
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]
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}
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} |