{"items":[{"id":"NVI-00013977","kind":"vulnerability","title":"emp3r0r has an unauthenticated HTTP Polling DoS","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-4595-rvpx-4q34","CVE-2026-61554"],"plain_summary":"GitHub lists this reviewed advisory for github.com/jm33-m0/emp3r0r/core. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-045f67809fe6f6f30e5cb020e18e2284"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-15T20:47:18.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2ba00f9ccecf617e4833ad65a609fa07"},{"kind":"EPSS","as_of":"2026-11-05T12:03:04.000Z","value":"0.707%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.53592. Missing scores are unknown.","source_id":"sr-045f67809fe6f6f30e5cb020e18e2284"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-2ba00f9ccecf617e4833ad65a609fa07","url":"https://github.com/advisories/GHSA-4595-rvpx-4q34","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-4595-rvpx-4q34","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T19:09:30.244Z"},{"id":"sr-045f67809fe6f6f30e5cb020e18e2284","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-61554","publisher":"FIRST EPSS","observed_at":"2026-11-06T07:17:46.392Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2ba00f9ccecf617e4833ad65a609fa07"],"technology":"github.com/jm33-m0/emp3r0r/core","known_exclusions":[],"conditions_summary":"### Summary\nThe `http_poll` C2 transport accepts attacker-controlled HTTP polling sessions before CBOR `MsgAuth` authentication is completed. A remote unauthenticated attacker can create arbitrary polling sessions and send request bodies that are forwarded into the C2 dispatch path. This can consume server resources and trigger pre-auth C2 processing.\n\n### Details\nThe plain HTTP C2 server starts the HTTP polling listener and forwards requests into `HandleHTTPServerSession`:\n```go\n// core/internal/cc/server/c2_http_server.go\nmux.HandleFunc(c2Path, func(w http.ResponseWriter, req *http.Request) {\n    stream, err := transport.HandleHTTPServerSession(w, req, &live.RuntimeConfig.MalleableC2)\n    ...\n    if stream != nil {\n        go cborStreamAccept(transport.NewStreamTransport(stream, req.RemoteAddr))\n    }\n})\n```\nThe HTTP polling handler accepts an attacker-supplied `sessionID` and `init=1` cookie, then creates and stores a server-side stream before authentication:\n\n```go\n// core/internal/transport/c2channel_http.go\nif isInit {\n    stream = newHTTPServerStream(sessionID)\n    w.WriteHeader(http.StatusOK)\n    return stream, nil\n}\n```\nPOST bodies for that unauthenticated session are read","public_affected_ranges":["< 0.0.0-20260531142011-aed3d81641ab"]}],"null_published_at":"2026-11-07T07:07:42.548Z","source_updated_at":"2026-09-15T20:47:18.000Z","source_disclosed_at":"2026-09-15T20:47:17.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-01T19:09:30.244Z"},{"id":"NVI-00013977","kind":"vulnerability","title":"emp3r0r has an unauthenticated HTTP Polling DoS","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-4595-rvpx-4q34","CVE-2026-61554"],"plain_summary":"GitHub lists this reviewed advisory for github.com/jm33-m0/emp3r0r/core. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0d05627bd20b5a207818a6d81c11c093"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-15T20:47:18.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2ba00f9ccecf617e4833ad65a609fa07"},{"kind":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.707%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.53496. Missing scores are unknown.","source_id":"sr-0d05627bd20b5a207818a6d81c11c093"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-2ba00f9ccecf617e4833ad65a609fa07","url":"https://github.com/advisories/GHSA-4595-rvpx-4q34","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-4595-rvpx-4q34","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T19:09:30.244Z"},{"id":"sr-0d05627bd20b5a207818a6d81c11c093","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-61554","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:44:07.789Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2ba00f9ccecf617e4833ad65a609fa07"],"technology":"github.com/jm33-m0/emp3r0r/core","known_exclusions":[],"conditions_summary":"### Summary\nThe `http_poll` C2 transport accepts attacker-controlled HTTP polling sessions before CBOR `MsgAuth` authentication is completed. A remote unauthenticated attacker can create arbitrary polling sessions and send request bodies that are forwarded into the C2 dispatch path. This can consume server resources and trigger pre-auth C2 processing.\n\n### Details\nThe plain HTTP C2 server starts the HTTP polling listener and forwards requests into `HandleHTTPServerSession`:\n```go\n// core/internal/cc/server/c2_http_server.go\nmux.HandleFunc(c2Path, func(w http.ResponseWriter, req *http.Request) {\n    stream, err := transport.HandleHTTPServerSession(w, req, &live.RuntimeConfig.MalleableC2)\n    ...\n    if stream != nil {\n        go cborStreamAccept(transport.NewStreamTransport(stream, req.RemoteAddr))\n    }\n})\n```\nThe HTTP polling handler accepts an attacker-supplied `sessionID` and `init=1` cookie, then creates and stores a server-side stream before authentication:\n\n```go\n// core/internal/transport/c2channel_http.go\nif isInit {\n    stream = newHTTPServerStream(sessionID)\n    w.WriteHeader(http.StatusOK)\n    return stream, nil\n}\n```\nPOST bodies for that unauthenticated session are read","public_affected_ranges":["< 0.0.0-20260531142011-aed3d81641ab"]}],"null_published_at":"2026-11-06T00:29:57.248Z","source_updated_at":"2026-09-15T20:47:18.000Z","source_disclosed_at":"2026-09-15T20:47:17.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-01T19:09:30.244Z"},{"id":"NVI-00013977","kind":"vulnerability","title":"emp3r0r has an unauthenticated HTTP Polling DoS","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-4595-rvpx-4q34","CVE-2026-61554"],"plain_summary":"GitHub lists this reviewed advisory for github.com/jm33-m0/emp3r0r/core. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-2ba00f9ccecf617e4833ad65a609fa07"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-09-15T20:47:18.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2ba00f9ccecf617e4833ad65a609fa07"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-2ba00f9ccecf617e4833ad65a609fa07","url":"https://github.com/advisories/GHSA-4595-rvpx-4q34","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-4595-rvpx-4q34","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T19:09:30.244Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2ba00f9ccecf617e4833ad65a609fa07"],"technology":"github.com/jm33-m0/emp3r0r/core","known_exclusions":[],"conditions_summary":"### Summary\nThe `http_poll` C2 transport accepts attacker-controlled HTTP polling sessions before CBOR `MsgAuth` authentication is completed. A remote unauthenticated attacker can create arbitrary polling sessions and send request bodies that are forwarded into the C2 dispatch path. This can consume server resources and trigger pre-auth C2 processing.\n\n### Details\nThe plain HTTP C2 server starts the HTTP polling listener and forwards requests into `HandleHTTPServerSession`:\n```go\n// core/internal/cc/server/c2_http_server.go\nmux.HandleFunc(c2Path, func(w http.ResponseWriter, req *http.Request) {\n    stream, err := transport.HandleHTTPServerSession(w, req, &live.RuntimeConfig.MalleableC2)\n    ...\n    if stream != nil {\n        go cborStreamAccept(transport.NewStreamTransport(stream, req.RemoteAddr))\n    }\n})\n```\nThe HTTP polling handler accepts an attacker-supplied `sessionID` and `init=1` cookie, then creates and stores a server-side stream before authentication:\n\n```go\n// core/internal/transport/c2channel_http.go\nif isInit {\n    stream = newHTTPServerStream(sessionID)\n    w.WriteHeader(http.StatusOK)\n    return stream, nil\n}\n```\nPOST bodies for that unauthenticated session are read","public_affected_ranges":["< 0.0.0-20260531142011-aed3d81641ab"]}],"null_published_at":"2026-11-02T10:00:37.193Z","source_updated_at":"2026-09-15T20:47:18.000Z","source_disclosed_at":"2026-09-15T20:47:17.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-01T19:09:30.244Z"}],"next_cursor":null,"snapshot_revision":"42594"}