PostgreSQL oidvector discloses a few bytes of memory_CVE-2026-2003

4.3 / 10

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Description

Improper validation of type "oidvector" in PostgreSQL allows a database user to disclose a few bytes of server memory. We have not ruled out viability of attacks that arrange for presence of confidential information in disclosed bytes, but they seem unlikely. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.

Basic Information

ID CVE-2026-2003

Source PostgreSQL

Published Feb 12, 2026 at 13:00

Modified Feb 12, 2026 at 14:33

Affected Product

Vendor n/a

Product PostgreSQL

Version 18

Affected Versions n/a PostgreSQL 18
n/a PostgreSQL 17
n/a PostgreSQL 16
n/a PostgreSQL 15
n/a PostgreSQL 0

CWE Classification

CWE-1287

References

www.postgresql.org /support/security/CVE-2026-2003/

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    "lastseen": "",
    "description": "Improper validation of type \"oidvector\" in PostgreSQL allows a database user to disclose a few bytes of server memory.  We have not ruled out viability of attacks that arrange for presence of confidential information in disclosed bytes, but they seem unlikely.  Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.",
    "published": "2026-02-12T13:00:06.108Z",
    "modified": "2026-02-12T14:33:37.255Z",
    "type": "cve",
    "title": "PostgreSQL oidvector discloses a few bytes of memory",
    "source": "PostgreSQL",
    "references": "https://www.postgresql.org/support/security/CVE-2026-2003/",
    "id": "CVE-2026-2003",
    "bulletinFamily": "",
    "cwe": [
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    ],
    "cvelist": null,
    "sourceData": "n/a PostgreSQL 18\nn/a PostgreSQL 17\nn/a PostgreSQL 16\nn/a PostgreSQL 15\nn/a PostgreSQL 0",
    "sourceHref": "",
    "cvss": {
        "score": 4.3,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
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        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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            "baseSeverity": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "PostgreSQL",
    "version": "18",
    "vendor": "n/a",
    "ai_description": "",
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}