{"metadata": {"vulnerability": "CVE-2026-103503", "count": 13, "kinds": {"milestone": 4, "sighting": 1, "kev": 0, "other": 8}}, "data": [{"timestamp": "2026-10-08T15:45:02.372Z", "date_only": false, "value": "2026-10-08T15:45:02.372Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-103503", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-10T12:59:48Z", "date_only": false, "value": "2026-10-10T12:59:48.000Z", "kind": "other", "label": "Date Assigned", "source": "cvelistv5 / EEF", "record": "CVE-2026-103503", "field": "containers.cna.dateAssigned"}, {"timestamp": "2026-10-12T15:17:45.545Z", "date_only": false, "value": "2026-10-12T15:17:45.545Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-103503", "field": "cveMetadata.datePublished"}, {"timestamp": "2026-10-12T15:17:45.545Z", "date_only": false, "value": "2026-10-12T15:17:45.545Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / EEF", "record": "CVE-2026-103503", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-12T15:32:04.920Z", "date_only": false, "value": "2026-10-12T15:32:04.920418Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117428658128694181", "record": "CVE-2026-103503", "field": "creation_timestamp", "uuid": "7a02ff8c-56d5-4af0-b5b8-702db99c3b71", "content": "CVE-2026-103503 Hex trusts its bundled CA certificates when cacerts_path is set Improper Certificate Validation vulnerability in hexpm hex allows an attacker who can intercept HTTPS connections, and holds a certificate for a Hex host issued by a CA in Hex's bundled CA store, to impersonate that host to users who set cacerts_path to a CA store that leaves that CA out.\ncacerts_path (HEX_CACERTS_PATH) is documented as the path to the CA certificate store, used instead of the CA bundle that ships with Hex. Hex.HTTP.SSL.ssl_opts/1 passes the configured store as the cacerts option, but builds the partial_chain callback from the bundled store whether cacerts_path is set or not. Hex.HTTP.SSL.partial_chain/2 accepts a server chain when any certificate in it has the same public key as a bundled CA certificate, so a chain that leads to a bundled CA passes verification although the configured store doesn't contain that CA. Hostname verification still applies.\nThis issue affects hex: from 0.20.2 before 2.5.2.\nhttps://www.cve.org/CVERecord?id=CVE-2026-103503https://github.com/hexpm/hex/security/advisories/GHSA-rw8q-hg7m-cxgrhttps://cna.erlef.org/cves/CVE-2026-103503.htmlhttps://osv.dev/vulnerability/EEF-CVE-2026-103503https://github.com/hexpm/hex/commit/c9b26a46928bfcd546773571e09c1d05f4cd9fb7https://github.com/hexpm/hex/commit/5f5a2136c7cf5991b6e8a30d645ca9f8e74b0785https://github.com/hexpm/hex/commit/6232a6498015e559743bec4f4fbec9138837cec8#hexpm #hex#CVE_2026_103503#bot", "url": "https://infosec.exchange/users/cve/statuses/117428658128694181"}, {"timestamp": "2026-10-12T16:17:02.427Z", "date_only": false, "value": "2026-10-12T16:17:02.427", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-103503", "record": "FKIE_CVE-2026-103503", "field": "published"}, {"timestamp": "2026-10-15T00:00:00Z", "date_only": false, "value": "2026-10-15T00:00:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-103503", "record": "UBUNTU-CVE-2026-103503", "field": "published"}, {"timestamp": "2026-10-15T00:00:00Z", "date_only": false, "value": "2026-10-15T00:00:00Z", "kind": "other", "label": "Updated", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-103503", "record": "UBUNTU-CVE-2026-103503", "field": "modified"}, {"timestamp": "2026-10-16T17:30:53.768Z", "date_only": false, "value": "2026-10-16T17:30:53.768172Z", "kind": "other", "label": "Recorded", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-103503", "field": "containers.adp.0.metrics.0.other.content.timestamp"}, {"timestamp": "2026-10-16T17:30:53.768Z", "date_only": false, "value": "2026-10-16T17:30:53.768172Z", "kind": "other", "label": "Recorded", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-103503", "record": "FKIE_CVE-2026-103503", "field": "metrics.ssvcV203.0.ssvcData.timestamp"}, {"timestamp": "2026-10-16T17:32:45.735Z", "date_only": false, "value": "2026-10-16T17:32:45.735Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-103503", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-10-16T17:32:45.735Z", "date_only": false, "value": "2026-10-16T17:32:45.735Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-103503", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-16T18:17:18.037Z", "date_only": false, "value": "2026-10-16T18:17:18.037", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-103503", "record": "FKIE_CVE-2026-103503", "field": "lastModified"}]}