CVE-2026-16240

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{}

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{"bugzilla": {"description": "postgresql: postgresql: Information disclosure in pg_basebackup via crafted backup manifest", "id": "2572537", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2572537"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.7", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "status": "draft"}, "cwe": "CWE-134", "details": ["A flaw was found in PostgreSQL's pg_basebackup utility. An attacker who has already compromised a database server can supply a crafted backup manifest containing unexpected formatting characters. When the client utility processes this data, it can lead to information disclosure by exposing internal client memory contents."], "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-2026-16240", "package_state": [{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "libpq", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "postgresql17", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "postgresql18", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-11-12T14:15:31Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-16240\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-16240\nhttps://www.postgresql.org/support/security/CVE-2026-16240/"], "statement": "This vulnerability is rated with a Low severity impact on Red Hat products because successful exploitation requires an adversary to have already gained control over the target database server before interacting with the client utility. The pg_basebackup tool is a short-lived administrative utility invoked on demand, significantly narrowing the window of exposure compared to continuously running services. Furthermore, memory contents are not automatically exfiltrated across the network during execution, and arbitrary memory write operations are precluded by the underlying formatting routine.", "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[18,18.7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[17,17.12)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[16,16.16)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[15,15.20)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,14.25)"}}], "enrichment": {"confidence": 90.0, "confidence_source": "inferred", "scores": [{"score": 90.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "PostgreSQL", "source": "cna", "vendor": "n/a"}, "product": "postgresql", "vendor": "postgresql"}], "created": "2026-11-13T04:15:14.472262+00:00", "updated": "2026-11-13T04:15:14.472296+00:00", "vendors": ["postgresql", "postgresql$PRODUCT$postgresql"]}