{"metadata": {"vulnerability": "CVE-2026-99088", "count": 20, "kinds": {"milestone": 7, "sighting": 1, "kev": 0, "other": 12}}, "data": [{"timestamp": "2026-09-25T10:25:14.390Z", "date_only": false, "value": "2026-09-25T10:25:14.390Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-99088", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-26T14:51:58.460Z", "date_only": false, "value": "2026-10-26T14:51:58.460Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99088", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-26T15:16:00Z", "date_only": false, "value": "2026-10-26T15:16:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-99088", "record": "UBUNTU-CVE-2026-99088", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-26T15:16:47Z", "date_only": false, "value": "2026-10-26T15:16:47Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-HWF6-223W-R64Q", "record": "GHSA-HWF6-223W-R64Q", "field": "database_specific.nvd_published_at"}, {"timestamp": "2026-10-26T15:16:47.517Z", "date_only": false, "value": "2026-10-26T15:16:47.517", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-99088", "record": "FKIE_CVE-2026-99088", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-26T15:19:40.852Z", "date_only": false, "value": "2026-10-26T15:19:40.852486Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117507881717996688", "record": "CVE-2026-99088", "field": "creation_timestamp", "uuid": "8e79581b-80c3-4b31-bf89-3262d1ef2b16", "content": "CVE-2026-99088 net: openvswitch: validate transport header presence in set_ipv6_addr In the Linux kernel, the following vulnerability has been resolved:\nnet: openvswitch: validate transport header presence in set_ipv6_addr\nWhen executing IPv6 address rewrite actions on IPv6 fragments,set_ipv6_addr() calls update_ipv6_checksum(). If parse_ipv6hdr()processes a non-first IPv6 fragment, it sets key->ip.proto toNEXTHDR_FRAGMENT and returns early without callingskb_set_transport_header().\nupdate_ipv6_checksum() unconditionally evaluates skb_transport_offset()on entry before checking l4_proto.  Because skb->transport_header isuninitialized, this triggers a warning under CONFIG_DEBUG_NET=y althoughit is completely harmless.\nFix this by returning early in update_ipv6_checksum() if l4_proto isNEXTHDR_FRAGMENT. This avoids reading the uninitialized transport offsetfor fragments while preserving the debug warning for any other protocolwhere the transport header is unexpectedly missing.\nSee the syzbot trace:\n!skb_transport_header_was_set(skb)WARNING: ./include/linux/skbuff.h:3075 at skb_transport_header include/linux/skbuff.h:3075 [inline], CPU#1: syz-executor463/5635WARNING: ./include/linux/skbuff.h:3075 at skb_transport_offset include/linux/skbuff.h:3250 [inline], CPU#1: syz-executor463/5635WARNING: ./include/linux/skbuff.h:3075 at update_ipv6_checksum net/openvswitch/actions.c:361 [inline], CPU#1: syz-executor463/5635WARNING: ./include/linux/skbuff.h:3075 at set_ipv6_addr+0x462/0x660 net/openvswitch/actions.c:399, CPU#1: syz-executor463/5635[...]RIP: 0010:skb_transport_header include/linux/skbuff.h:3075 [inline]RIP: 0010:skb_transport_offset include/linux/skbuff.h:3250 [inline]RIP: 0010:update_ipv6_checksum net/openvswitch/actions.c:361 [inline]RIP: 0010:set_ipv6_addr+0x462/0x660 net/openvswitch/actions.c:399[...]Call Trace: <TASK> set_ipv6 net/openvswitch/actions.c:531 [inline] do_execute_actions+0x557e/0x8600 net/openvswitch/actions.c:1366 ovs_execute_actions+0xde/0x520 net/openvswitch/actions.c:1592 ovs_packet_cmd_execute+0xb4f/0xf10 net/openvswitch/datapath.c:705 genl_family_rcv_msg_doit+0x233/0x340 net/netlink/genetlink.c:1114 genl_rcv_msg+0x614/0x7a0 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2572 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast+0x7bd/0x940 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec+0x14e/0x190 net/socket.c:800\nhttps://www.cve.org/CVERecord?id=CVE-2026-99088https://git.kernel.org/stable/c/b7b80d204abdc258006f9e17c92b363ab13bb599https://git.kernel.org/stable/c/6774af7cd17be8f0d0f70de3a749d381b4f2e9dahttps://git.kernel.org/stable/c/2594795fd832f0253826d64ff8976b8ff5fbfe9fhttps://git.kernel.org/stable/c/6b8897ba0733f88f0360ea48a970f373f9142de0https://git.kernel.org/stable/c/3c6a4b11330fe424557538a98fca9f0a4c5bf313#kernel #Linux#CVE_2026_99088#bot", "url": "https://infosec.exchange/users/cve/statuses/117507881717996688"}, {"timestamp": "2026-10-26T15:34:49Z", "date_only": false, "value": "2026-10-26T15:34:49Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-HWF6-223W-R64Q", "record": "GHSA-HWF6-223W-R64Q", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-27T01:03:48Z", "date_only": false, "value": "2026-10-27T01:03:48.000Z", "kind": "other", "label": "Advisory revision", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-99088", "record": "MSRC_CVE-2026-99088", "field": "document.tracking.revision_history.0.date"}, {"timestamp": "2026-10-27T01:03:48Z", "date_only": false, "value": "2026-10-27T01:03:48.000Z", "kind": "other", "label": "None available", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-99088", "record": "MSRC_CVE-2026-99088", "field": "vulnerabilities.0.remediations.0.date"}, {"timestamp": "2026-10-27T01:03:48Z", "date_only": false, "value": "2026-10-27T01:03:48.000Z", "kind": "milestone", "label": "Published", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-99088", "record": "MSRC_CVE-2026-99088", "field": "document.tracking.initial_release_date", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-28T01:01:31Z", "date_only": false, "value": "2026-10-28T01:01:31.000Z", "kind": "other", "label": "Advisory revision", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-99088", "record": "MSRC_CVE-2026-99088", "field": "document.tracking.revision_history.1.date"}, {"timestamp": "2026-10-28T01:01:31Z", "date_only": false, "value": "2026-10-28T01:01:31.000Z", "kind": "other", "label": "Updated", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-99088", "record": "MSRC_CVE-2026-99088", "field": "document.tracking.current_release_date"}, {"timestamp": "2026-10-28T07:02:50.899Z", "date_only": false, "value": "2026-10-28T07:02:50.899Z", "kind": "other", "label": "Document generated", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-99088", "record": "MSRC_CVE-2026-99088", "field": "document.tracking.generator.date"}, {"timestamp": "2026-10-29T06:07:33.828Z", "date_only": false, "value": "2026-10-29T06:07:33.828542Z", "kind": "milestone", "label": "Published", "source": "osv_bellsoft \u00b7 BELL-CVE-2026-99088", "record": "BELL-CVE-2026-99088", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-29T06:34:53.920Z", "date_only": false, "value": "2026-10-29T06:34:53.92010Z", "kind": "other", "label": "Updated", "source": "osv_bellsoft \u00b7 BELL-CVE-2026-99088", "record": "BELL-CVE-2026-99088", "field": "modified"}, {"timestamp": "2026-10-30T12:41:39.655Z", "date_only": false, "value": "2026-10-30T12:41:39.655Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-99088", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-10-30T12:41:39.655Z", "date_only": false, "value": "2026-10-30T12:41:39.655Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / Linux", "record": "CVE-2026-99088", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-30T13:21:44.530Z", "date_only": false, "value": "2026-10-30T13:21:44.530", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-99088", "record": "FKIE_CVE-2026-99088", "field": "lastModified"}, {"timestamp": "2026-10-30T15:34:18Z", "date_only": false, "value": "2026-10-30T15:34:18Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-HWF6-223W-R64Q", "record": "GHSA-HWF6-223W-R64Q", "field": "modified"}, {"timestamp": "2026-10-30T19:03:47Z", "date_only": false, "value": "2026-10-30T19:03:47Z", "kind": "other", "label": "Updated", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-99088", "record": "UBUNTU-CVE-2026-99088", "field": "modified"}], "metrics": {"as_of": "2026-10-31T04:45:18.694Z", "anchors": {"origin": {"timestamp": "2026-10-26T14:51:58.460Z", "date_only": false, "value": "2026-10-26T14:51:58.460Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99088", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "discovery": null, "report": null, "acknowledgement": null, "disclosure": {"timestamp": "2026-10-26T14:51:58.460Z", "date_only": false, "value": "2026-10-26T14:51:58.460Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99088", "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": 395600.234926, "hours": 109.88895414611112, "days": 4.57870642275463, "min_seconds": 395600.234926, "max_seconds": 395600.234926, "approximate": false, "ongoing": true, "order_known": true, "batch_listing": false, "end_before_start": false, "start": {"timestamp": "2026-10-26T14:51:58.460Z", "date_only": false, "value": "2026-10-26T14:51:58.460Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99088", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "end": {"timestamp": "2026-10-31T04:45:18.694Z", "date_only": false, "label": "As of", "source": "Calculation clock"}}, "exploitation_to_patch": {"available": false, "missing": ["start"]}, "exploit_publication_to_patch": {"available": false, "missing": ["start"]}}}