{"metadata": {"vulnerability": "CVE-2026-73261", "count": 7, "kinds": {"milestone": 3, "sighting": 1, "kev": 0, "other": 3}}, "data": [{"timestamp": "2026-08-11T17:18:01.598Z", "date_only": false, "value": "2026-08-11T17:18:01.598Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-73261", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-14T18:25:41.102Z", "date_only": false, "value": "2026-10-14T18:25:41.102Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-73261", "field": "cveMetadata.datePublished"}, {"timestamp": "2026-10-14T18:25:41.102Z", "date_only": false, "value": "2026-10-14T18:25:41.102Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-73261", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-10-14T18:25:41.102Z", "date_only": false, "value": "2026-10-14T18:25:41.102Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / GitHub_M", "record": "CVE-2026-73261", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-14T19:17:19.990Z", "date_only": false, "value": "2026-10-14T19:17:19.990", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-73261", "record": "FKIE_CVE-2026-73261", "field": "published"}, {"timestamp": "2026-10-14T19:17:19.990Z", "date_only": false, "value": "2026-10-14T19:17:19.990", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-73261", "record": "FKIE_CVE-2026-73261", "field": "lastModified"}, {"timestamp": "2026-10-14T23:43:52.089Z", "date_only": false, "value": "2026-10-14T23:43:52.089058Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117441916535326193", "record": "CVE-2026-73261", "field": "creation_timestamp", "uuid": "32569ce1-3b70-4bbe-bf3e-9ecb1455d7f7", "content": "CVE-2026-73261 Mongoose: handle_opt() missing opts[1] > len check \u2014 1-byte OOB read corrupts TCP MSS, silences mg_send() per connection Mongoose is an embedded web server and network library. Prior to 7.23, the built-in TCP/IP stack enabled by MG_ENABLE_TCPIP in src/net_builtin.c does not reject a TCP option whose declared opts[1] length exceeds the remaining option bytes. In handle_opt(), a NOP followed by a truncated MSS option causes opts[3] to be read outside the declared options area and used as the low byte of dmss. An unauthenticated remote peer can corrupt the per-connection MSS value so later mg_send() calls transmit truncated or zero-length application payloads while the TCP connection otherwise appears healthy. This issue is fixed in version 7.23.\nhttps://www.cve.org/CVERecord?id=CVE-2026-73261https://github.com/cesanta/mongoose/security/advisories/GHSA-3fmr-92g4-wchxhttps://github.com/cesanta/mongoose/commit/cc7c6d2d18c28fcc6d085633dddd88402946140ahttps://github.com/cesanta/mongoose/releases/tag/7.23#cesanta #mongoose#CVE_2026_73261#bot", "url": "https://infosec.exchange/users/cve/statuses/117441916535326193"}]}