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{"bugzilla": {"description": "postgresql: PostgreSQL missing validation of multibyte character length executes arbitrary code", "id": "2439324", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2439324"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-1285", "details": ["No description is available for this CVE."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2026-2006", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "postgresql16", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "postgresql18", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "postgresql", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "postgresql", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "postgresql:12/postgresql", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "postgresql:13/postgresql", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "postgresql:15/postgresql", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "postgresql:16/postgresql", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "postgresql", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "postgresql:15/postgresql", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "postgresql:16/postgresql", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-02-12T13:00:10Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-2006\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-2006\nhttps://www.postgresql.org/support/security/CVE-2026-2006/"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[18,18.2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[17,17.8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[16,16.12)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[15,15.16)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,14.21)"}}], "product": "postgresql", "vendor": "postgresql"}], "analysis": {"en": {"generated_at": "2026-04-17T20:05:02.560236+00:00", "value": {"mitigation_remediation": ["Upgrade PostgreSQL to version 14.21 or later, 15.16 or later, 16.12 or later, 17.8 or later, or 18.2 or later. The vendor advisory outlines the exact patch releases to apply.", "If upgrading is not immediately possible, restrict database access to only trusted users and architectures that cannot construct multibyte overflow vectors.", "Apply a network-level firewall rule to limit incoming connections to the database only to trusted subnets, reducing the attack surface for unauthenticated users.", "Monitor query logs for abnormal multibyte character usage patterns that could indicate attempts to exploit the bug."], "summary": {"action": "Immediate Patch", "impact": "Arbitrary code execution"}, "threat_synthesis": {"affected_systems": "Versions of PostgreSQL before 14.21, 15.16, 16.12, 17.8, and 18.2 are affected. Any installation using these releases is susceptible unless the database user account does not have access to construct the vulnerable queries.", "description_and_impact": "PostgreSQL fails to validate the length of multibyte characters used in text manipulation. A crafted query can overflow a buffer, allowing a database user to run code with the operating system permissions of the database service. The vulnerability enables the attacker to compromise confidentiality, integrity, and availability of the host system.", "risk_and_exploitability": "The CVSS score of 8.8 classifies this issue as high severity, and the EPSS score of less than 1% indicates a low current exploitation probability. It is not listed in the CISA KEV catalogue. The most likely attack vector is through a crafted SQL statement sent over a database connection, either locally or remotely if the database is exposed to an untrusted network."}}}}, "created": "2026-02-13T21:35:38.592664+00:00", "updated": "2026-04-17T20:15:26.993465+00:00", "vendors": ["postgresql", "postgresql$PRODUCT$postgresql"]}