{"metadata": {"vulnerability": "CVE-2026-77937", "count": 14, "kinds": {"milestone": 4, "sighting": 1, "kev": 0, "other": 9}}, "data": [{"timestamp": "2026-08-21T17:52:36.080Z", "date_only": false, "value": "2026-08-21T17:52:36.080Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-77937", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-18T00:00:00Z", "date_only": false, "value": "2026-10-18T00:00:00.000Z", "kind": "other", "label": "Made public", "source": "cvelistv5 / VulnCheck", "record": "CVE-2026-77937", "field": "containers.cna.datePublic", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-20T00:46:14.829Z", "date_only": false, "value": "2026-10-20T00:46:14.829Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-77937", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-20T00:46:14.829Z", "date_only": false, "value": "2026-10-20T00:46:14.829Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / VulnCheck", "record": "CVE-2026-77937", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-20T01:17:20Z", "date_only": false, "value": "2026-10-20T01:17:20Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-8P6H-849R-WW4H", "record": "GHSA-8P6H-849R-WW4H", "field": "database_specific.nvd_published_at"}, {"timestamp": "2026-10-20T01:17:20.263Z", "date_only": false, "value": "2026-10-20T01:17:20.263", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-77937", "record": "FKIE_CVE-2026-77937", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-20T01:21:04.048Z", "date_only": false, "value": "2026-10-20T01:21:04.048101Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117470610295933328", "record": "cve-2026-77937", "field": "creation_timestamp", "uuid": "70eac523-c5e5-49a8-b12f-17b8ec9e4959", "content": "CVE-2026-77937 Letta through 0.16.8 Cross-Tenant Impersonation via user_id Header Letta through 0.16.8 contains an authentication bypass vulnerability that allows API callers to impersonate other users by supplying a self-asserted user_id HTTP header. Attackers can set user_id to another tenant's ID, even with LETTA_SERVER_SECURE enabled, to read and modify that user's agents, memory and configuration.\nhttps://www.cve.org/CVERecord?id=CVE-2026-77937https://www.lasso.security/vulnerability-database/cve-2026-77937https://github.com/letta-ai/letta/blob/1131535716e8a31c9a437f8695e25ac98f203a24/letta/server/rest_api/dependencies.py#L39https://www.vulncheck.com/advisories/letta-through-0.16.8-cross-tenant-impersonation-via-user-id-header#letta-ai #letta#CVE_2026_77937#bot", "url": "https://infosec.exchange/users/cve/statuses/117470610295933328"}, {"timestamp": "2026-10-20T03:32:45Z", "date_only": false, "value": "2026-10-20T03:32:45Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-8P6H-849R-WW4H", "record": "GHSA-8P6H-849R-WW4H", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-20T03:32:45Z", "date_only": false, "value": "2026-10-20T03:32:45Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-8P6H-849R-WW4H", "record": "GHSA-8P6H-849R-WW4H", "field": "modified"}, {"timestamp": "2026-10-20T13:48:24.242Z", "date_only": false, "value": "2026-10-20T13:48:24.242241Z", "kind": "other", "label": "Recorded", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-77937", "field": "containers.adp.0.metrics.0.other.content.timestamp"}, {"timestamp": "2026-10-20T13:48:24.242Z", "date_only": false, "value": "2026-10-20T13:48:24.242241Z", "kind": "other", "label": "Recorded", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-77937", "record": "FKIE_CVE-2026-77937", "field": "metrics.ssvcV203.0.ssvcData.timestamp"}, {"timestamp": "2026-10-20T13:48:37.840Z", "date_only": false, "value": "2026-10-20T13:48:37.840Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-77937", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-10-20T13:48:37.840Z", "date_only": false, "value": "2026-10-20T13:48:37.840Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-77937", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-20T20:11:29.833Z", "date_only": false, "value": "2026-10-20T20:11:29.833", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-77937", "record": "FKIE_CVE-2026-77937", "field": "lastModified"}], "metrics": {"as_of": "2026-10-29T01:56:20.966Z", "anchors": {"origin": {"timestamp": "2026-10-18T00:00:00Z", "date_only": false, "value": "2026-10-18T00:00:00.000Z", "kind": "other", "label": "Made public", "source": "cvelistv5 / VulnCheck", "record": "CVE-2026-77937", "field": "containers.cna.datePublic", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "discovery": null, "report": null, "acknowledgement": null, "disclosure": {"timestamp": "2026-10-18T00:00:00Z", "date_only": false, "value": "2026-10-18T00:00:00.000Z", "kind": "other", "label": "Made public", "source": "cvelistv5 / VulnCheck", "record": "CVE-2026-77937", "field": "containers.cna.datePublic", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "exploit_publication": null, "exploitation": null, "patch": null}, "vendor_response_time": {"available": false, "missing": ["start", "end"]}, "time_to_exploit": {"available": false, "missing": ["end"]}, "disclosure_to_exploit": {"available": false, "missing": ["end"]}, "disclosure_to_exploit_publication": {"available": false, "missing": ["end"]}, "time_to_patch": {"available": false, "missing": ["start", "end"]}, "total_time_to_patch": {"available": false, "missing": ["start", "end"]}, "disclosure_to_patch": {"available": false, "missing": ["end"]}, "time_unpatched": {"available": true, "seconds": 957380.966184, "hours": 265.93915727333336, "days": 11.080798219722222, "min_seconds": 870980.966184, "max_seconds": 957380.966184, "approximate": true, "ongoing": true, "order_known": true, "batch_listing": false, "end_before_start": false, "start": {"timestamp": "2026-10-18T00:00:00Z", "date_only": false, "value": "2026-10-18T00:00:00.000Z", "kind": "other", "label": "Made public", "source": "cvelistv5 / VulnCheck", "record": "CVE-2026-77937", "field": "containers.cna.datePublic", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "end": {"timestamp": "2026-10-29T01:56:20.966Z", "date_only": false, "label": "As of", "source": "Calculation clock"}}, "exploitation_to_patch": {"available": false, "missing": ["start"]}, "exploit_publication_to_patch": {"available": false, "missing": ["start"]}}}