{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-54291", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-12T17:46:37.293Z", "datePublished": "2026-07-06T18:55:01.675Z", "dateUpdated": "2026-07-06T19:47:17.454Z"}, "containers": {"cna": {"title": "Silent channel-binding authentication downgrade via unsupported certificate algorithms", "problemTypes": [{"descriptions": [{"cweId": "CWE-636", "lang": "en", "description": "CWE-636: Not Failing Securely ('Failing Open')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-757", "lang": "en", "description": "CWE-757: Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "baseScore": 8.2, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/pgjdbc/pgjdbc/security/advisories/GHSA-j92g-9f8w-j867", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/pgjdbc/pgjdbc/security/advisories/GHSA-j92g-9f8w-j867"}, {"name": "https://github.com/pgjdbc/pgjdbc/commit/77df98e4e66c12936ded3478a0954f6f580bad99", "tags": ["x_refsource_MISC"], "url": "https://github.com/pgjdbc/pgjdbc/commit/77df98e4e66c12936ded3478a0954f6f580bad99"}, {"name": "https://github.com/ongres/scram/releases/tag/3.3", "tags": ["x_refsource_MISC"], "url": "https://github.com/ongres/scram/releases/tag/3.3"}], "affected": [{"vendor": "pgjdbc", "product": "pgjdbc", "versions": [{"version": ">= 42.7.4, < 42.7.12", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-06T18:55:01.675Z"}, "descriptions": [{"lang": "en", "value": "pgjdbc is an open source postgresql JDBC Driver. In releases 42.7.4 through 42.7.11, channelBinding=require connections can be silently downgraded from SCRAM-SHA-256-PLUS with channel binding to plain SCRAM-SHA-256 without it, losing the man-in-the-middle protection the setting is meant to guarantee. An attacker who can intercept the TLS connection can trigger the downgrade with a certificate whose signature algorithm has no tls-server-end-point channel-binding hash, because the bundled com.ongres.scram:scram-client returns an empty byte array instead of failing and pgJDBC ScramAuthenticator checks only that the server advertised a PLUS mechanism, without rejecting the empty binding or checking that the negotiated mechanism uses channel binding. This issue is fixed in version 42.7.12."}], "source": {"advisory": "GHSA-j92g-9f8w-j867", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-06T19:47:12.248185Z", "id": "CVE-2026-54291", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-06T19:47:17.454Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-54291", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-06T19:47:12.248185Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-06T19:47:14.258Z"}}], "cna": {"title": "Silent channel-binding authentication downgrade via unsupported certificate algorithms", "source": {"advisory": "GHSA-j92g-9f8w-j867", "discovery": "UNKNOWN"}, "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N", "userInteraction": "NONE", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "LOW", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE"}}], "affected": [{"vendor": "pgjdbc", "product": "pgjdbc", "versions": [{"status": "affected", "version": ">= 42.7.4, < 42.7.12"}]}], "references": [{"url": "https://github.com/pgjdbc/pgjdbc/security/advisories/GHSA-j92g-9f8w-j867", "name": "https://github.com/pgjdbc/pgjdbc/security/advisories/GHSA-j92g-9f8w-j867", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/pgjdbc/pgjdbc/commit/77df98e4e66c12936ded3478a0954f6f580bad99", "name": "https://github.com/pgjdbc/pgjdbc/commit/77df98e4e66c12936ded3478a0954f6f580bad99", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/ongres/scram/releases/tag/3.3", "name": "https://github.com/ongres/scram/releases/tag/3.3", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "pgjdbc is an open source postgresql JDBC Driver. In releases 42.7.4 through 42.7.11, channelBinding=require connections can be silently downgraded from SCRAM-SHA-256-PLUS with channel binding to plain SCRAM-SHA-256 without it, losing the man-in-the-middle protection the setting is meant to guarantee. An attacker who can intercept the TLS connection can trigger the downgrade with a certificate whose signature algorithm has no tls-server-end-point channel-binding hash, because the bundled com.ongres.scram:scram-client returns an empty byte array instead of failing and pgJDBC ScramAuthenticator checks only that the server advertised a PLUS mechanism, without rejecting the empty binding or checking that the negotiated mechanism uses channel binding. This issue is fixed in version 42.7.12."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-636", "description": "CWE-636: Not Failing Securely ('Failing Open')"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-757", "description": "CWE-757: Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-06T18:55:01.675Z"}}}, "cveMetadata": {"cveId": "CVE-2026-54291", "state": "PUBLISHED", "dateUpdated": "2026-07-06T19:47:17.454Z", "dateReserved": "2026-06-12T17:46:37.293Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-07-06T18:55:01.675Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[42.7.4,42.7.12)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "pgjdbc", "source": "cna", "vendor": "pgjdbc"}, "product": "pgjdbc", "vendor": "pgjdbc"}], "created": "2026-07-06T20:45:15.841001+00:00", "updated": "2026-07-06T20:45:15.841110+00:00", "vendors": ["pgjdbc", "pgjdbc$PRODUCT$pgjdbc"]}