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vuln-cve/data/2026/49xxx/CVE-2026-49957.json
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{
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"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-49957",
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"state": "PUBLISHED",
"assignerShortName": "VulnCheck",
"dateReserved": "2026-06-02T16:30:15.232Z",
"datePublished": "2026-06-09T16:25:10.651Z",
"dateUpdated": "2026-11-08T14:04:58.843Z"
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"dateUpdated": "2026-11-08T14:04:58.843Z"
},
"datePublic": "2026-06-06T00:00:00.000Z",
"title": "Hermes WebUI < 0.51.296 Workspace Boundary Bypass via api/workspace.py",
"descriptions": [
{
"lang": "en",
"value": "Hermes WebUI before version 0.51.296 contains a workspace boundary bypass vulnerability that allows authenticated attackers to circumvent blocked-root path checks by exploiting an early return in the SSH/remote terminal profile workspace resolution logic within _remote_terminal_workspace_candidate(). Attackers can configure a remote terminal working directory to a system directory such as /etc, causing the workspace resolution path to accept it as a trusted local workspace root before the _is_blocked_workspace_path() guard executes, enabling read access to local system files through workspace file-read helpers."
}
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"description": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
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"vulnIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
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"references": [
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"url": "https://github.com/nesquena/hermes-webui/releases/tag/v0.51.296",
"name": "hermes-webui 0.51.296 Release Notes",
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{
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"url": "https://github.com/nesquena/hermes-webui/commit/91a89fb5d5c0bf87932917f9914ad0150ea62fe4",
"tags": [
"patch"
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},
{
"url": "https://www.vulncheck.com/advisories/hermes-webui-workspace-boundary-bypass-via-api-workspace-py",
"tags": [
"third-party-advisory"
]
}
],
"credits": [
{
"lang": "en",
"value": "Chia Min Jun Lennon",
"type": "finder"
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
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},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-06-09T20:21:59.197539Z",
"id": "CVE-2026-49957",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
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],
"title": "CISA ADP Vulnrichment",
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}