{"metadata": {"vulnerability": "CVE-2026-55368", "count": 10, "kinds": {"milestone": 4, "sighting": 2, "kev": 0, "other": 4}}, "data": [{"timestamp": "2026-06-16T18:57:40.181Z", "date_only": false, "value": "2026-06-16T18:57:40.181Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-55368", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-11-04T21:38:04.613Z", "date_only": false, "value": "2026-11-04T21:38:04.613Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-55368", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-11-04T21:38:04.613Z", "date_only": false, "value": "2026-11-04T21:38:04.613Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-55368", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-11-04T21:38:04.613Z", "date_only": false, "value": "2026-11-04T21:38:04.613Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / GitHub_M", "record": "CVE-2026-55368", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-11-04T21:46:31.868Z", "date_only": false, "value": "2026-11-04T21:46:31.868728Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117560363664259014", "record": "CVE-2026-55368", "field": "creation_timestamp", "uuid": "e0cf66dc-bee1-4c46-934f-7b89952c4c90", "content": "CVE-2026-55368 h2o: buffer overflow when using the %{error}x log directive h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 48b7ae12107fd2b118e4641da49599e9aac8edd8, H2O's access-log formatter could write past its log-line buffer when an affected custom access-log format was configured. The allocation errors affected %{error}x, %q when the query string was empty, and numeric elements whose temporary terminating NUL reached the end of the buffer. A matching request could crash the server, while the effect of the one-byte NUL overwrite beyond a crash was not established. This vulnerability is fixed with commit 48b7ae12107fd2b118e4641da49599e9aac8edd8.\nhttps://www.cve.org/CVERecord?id=CVE-2026-55368https://github.com/h2o/h2o/security/advisories/GHSA-m998-r5ww-rqjfhttps://github.com/h2o/h2o/pull/3757https://github.com/h2o/h2o/commit/48b7ae12107fd2b118e4641da49599e9aac8edd8#h2o#CVE_2026_55368#bot", "url": "https://infosec.exchange/users/cve/statuses/117560363664259014"}, {"timestamp": "2026-11-04T22:18:06.343Z", "date_only": false, "value": "2026-11-04T22:18:06.343", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-55368", "record": "FKIE_CVE-2026-55368", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-11-04T22:18:06.343Z", "date_only": false, "value": "2026-11-04T22:18:06.343", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-55368", "record": "FKIE_CVE-2026-55368", "field": "lastModified", "linked_record": true}, {"timestamp": "2026-11-05T00:00:00Z", "date_only": false, "value": "2026-11-05T00:00:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-55368", "record": "UBUNTU-CVE-2026-55368", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-11-05T00:00:00Z", "date_only": false, "value": "2026-11-05T00:00:00Z", "kind": "other", "label": "Updated", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-55368", "record": "UBUNTU-CVE-2026-55368", "field": "modified", "linked_record": true}, {"timestamp": "2026-11-05T01:46:32.183Z", "date_only": false, "value": "2026-11-05T01:46:32.183367Z", "kind": "sighting", "label": "Seen", "source": "https://bsky.app/profile/thehackerwire.bsky.social/post/3mzjqp4baod2d", "record": "CVE-2026-55368", "field": "creation_timestamp", "uuid": "1a524930-76ef-4107-9363-8a797a6b4d01", "content": "\ud83d\udfe0 CVE-2026-55368 - High (8.1)\n\nh2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 48b7ae12107fd...\n\nhttps://www.thehackerwire.com/vulnerability/CVE-2026-55368/\n\n#infosec #cybersecurity #CVE #vulnerability #security #patchstack", "url": "https://bsky.app/profile/thehackerwire.bsky.social/post/3mzjqp4baod2d"}], "metrics": {"as_of": "2026-11-08T08:03:52.731Z", "anchors": {"origin": {"timestamp": "2026-11-04T21:38:04.613Z", "date_only": false, "value": "2026-11-04T21:38:04.613Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-55368", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "discovery": null, "report": null, "acknowledgement": null, "disclosure": {"timestamp": "2026-11-04T21:38:04.613Z", "date_only": false, "value": "2026-11-04T21:38:04.613Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-55368", "field": "cveMetadata.datePublished", "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": 296748.118645, "hours": 82.43003295694444, "days": 3.4345847065393516, "min_seconds": 296748.118645, "max_seconds": 296748.118645, "approximate": false, "ongoing": true, "order_known": true, "batch_listing": false, "end_before_start": false, "start": {"timestamp": "2026-11-04T21:38:04.613Z", "date_only": false, "value": "2026-11-04T21:38:04.613Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-55368", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "end": {"timestamp": "2026-11-08T08:03:52.731Z", "date_only": false, "label": "As of", "source": "Calculation clock"}}, "exploitation_to_patch": {"available": false, "missing": ["start"]}, "exploit_publication_to_patch": {"available": false, "missing": ["start"]}}}