172 lines
8.0 KiB
JSON
172 lines
8.0 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-55856",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-06-17T16:44:40.995Z",
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"datePublished": "2026-08-28T22:41:14.376Z",
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"dateUpdated": "2026-08-31T18:37:36.732Z"
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},
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"containers": {
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"cna": {
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"title": "MariaDB Connector/J: Cleartext password disclosure to a MITM on the initial-handshake",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-522",
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"lang": "en",
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"description": "CWE-522: Insufficiently Protected Credentials",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "HIGH",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 5.9,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-g9jj-cgmh-9f38",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-g9jj-cgmh-9f38"
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},
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{
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"name": "https://github.com/mariadb-corporation/mariadb-connector-j/commit/149ec6a626376214966c01f42d48be1b80d06056",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/mariadb-corporation/mariadb-connector-j/commit/149ec6a626376214966c01f42d48be1b80d06056"
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},
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{
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"name": "https://github.com/mariadb-corporation/mariadb-connector-j/commit/d90b9872322c76b05a48219be66bff1d33102f8a",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/mariadb-corporation/mariadb-connector-j/commit/d90b9872322c76b05a48219be66bff1d33102f8a"
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},
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{
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"name": "https://hackerone.com/reports/3777370",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://hackerone.com/reports/3777370"
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},
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{
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"name": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.3",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.3"
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},
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{
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"name": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.9",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.9"
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},
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{
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"name": "https://jira.mariadb.org/browse/CONJ-1325",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://jira.mariadb.org/browse/CONJ-1325"
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}
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],
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"affected": [
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{
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"vendor": "mariadb-corporation",
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"product": "mariadb-connector-j",
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"versions": [
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{
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"version": "< 2.7.14",
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"status": "affected"
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},
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{
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"version": ">= 3.0.0, < 3.3.5",
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"status": "affected"
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},
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{
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"version": ">= 3.4.0, < 3.4.3",
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"status": "affected"
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},
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{
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"version": ">= 3.5.0, < 3.5.9",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-08-28T22:41:14.376Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. Prior to 2.7.14, 3.3.5, 3.4.3, and 3.5.9, when a Java application connects with sslMode=verify-full or sslMode=verify-ca, supplies a password, and does not configure serverSslCert or trustStore, Connector/J can accept an untrusted self-signed certificate through the fallbackToSystemTrustStore=true ephemeral trust manager and record its certFingerprint for later identity binding. The OK-packet and authentication-switch paths enforce the certificate fingerprint, but the initial-handshake path does not. HandshakeResponse.encode() can therefore build and send a mysql_clear_password response before checking certFingerprint != null && !isMitMProof(), sslMode, or whether the authentication plugin is resistant to a man-in-the-middle, and the initial path also bypasses restrictedAuth. An active man-in-the-middle or hostile server can present a self-signed certificate, claim to be MariaDB, select mysql_clear_password as the initial authentication plugin, and receive the full database password before the connection is rejected. This issue is fixed in versions 2.7.14, 3.3.5, 3.4.3, and 3.5.9."
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}
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],
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"source": {
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"advisory": "GHSA-g9jj-cgmh-9f38",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-08-31T18:37:25.396891Z",
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"id": "CVE-2026-55856",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-08-31T18:37:36.732Z"
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}
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}
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]
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}
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} |