191 lines
8.0 KiB
JSON
191 lines
8.0 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-2026-81099",
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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": "2026-08-26T16:00:33.425Z",
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"datePublished": "2026-08-27T14:50:39.029Z",
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"dateUpdated": "2026-08-29T11:48:12.861Z"
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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": "2026-08-29T11:48:12.861Z"
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},
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"datePublic": "2026-08-26T00:00:00.000Z",
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"title": "Timescale tiger-slack DNS Rebinding via Disabled Host Header Allow-List",
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"descriptions": [
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{
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"lang": "en",
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"value": "tiger-slack started its MCP HTTP transport without enabling the host allow-list the underlying SDK provides. mcp/src/httpServer.ts called the shared httpServerFactory helper and never set the DNS-rebinding-protection option, so the transport accepted a request whatever host it named, and a page in a browser could point a name it controlled at the address the server was bound to and drive the locally reachable Slack MCP server through the visitor's browser. The fix passes the option explicitly alongside a dependency update; the update alone would not have closed it. The repository publishes no release that brackets the fix, so the affected boundary is the commit preceding it."
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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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"cweId": "CWE-346",
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"description": "Origin Validation Error",
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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": "timescale",
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"product": "tiger-slack",
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"collectionURL": "https://github.com/timescale/tiger-slack",
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"repo": "https://github.com/timescale/tiger-slack",
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"defaultStatus": "unaffected",
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"versions": [
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{
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"version": "23faf7ee7e7f73e5ea4f67e627c1aca94bba1f09",
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"status": "unaffected",
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"versionType": "git"
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},
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{
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"version": "0",
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"status": "affected",
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"versionType": "git",
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"lessThan": "23faf7ee7e7f73e5ea4f67e627c1aca94bba1f09"
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}
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]
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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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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV4_0": {
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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": "PASSIVE",
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"vulnConfidentialityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "HIGH",
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"subIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"exploitMaturity": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"valueDensity": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "NOT_DEFINED",
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"providerUrgency": "NOT_DEFINED",
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"version": "4.0",
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"baseSeverity": "HIGH",
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"baseScore": 7.6,
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
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}
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},
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{
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV3_1": {
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"attackVector": "NETWORK",
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"attackComplexity": "HIGH",
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"privilegesRequired": "NONE",
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"userInteraction": "REQUIRED",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"availabilityImpact": "NONE",
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"version": "3.1",
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"baseSeverity": "MEDIUM",
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"baseScore": 6.8,
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"
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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://github.com/timescale/tiger-slack",
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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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"url": "https://github.com/timescale/tiger-slack/pull/146",
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"tags": [
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"issue-tracking",
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"patch"
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]
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},
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{
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"name": "VulnCheck Advisory: Timescale tiger-slack DNS Rebinding via Disabled Host Header Allow-List",
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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/timescale-tiger-slack-dns-rebinding-via-disabled-host-header-allow-list"
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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": "Avishai Gonen (Pluto Security)",
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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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"source": {
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"discovery": "UNKNOWN"
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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": "2026-08-27T17:53:13.312915Z",
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"id": "CVE-2026-81099",
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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": "total"
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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": "2026-08-27T17:53:20.090Z"
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}
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}
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]
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}
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} |