CVE-2026-2003 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

No data.

References

Link	Providers
https://www.postgresql.org/support/security/CVE-2026-2003/

History

Thu, 12 Feb 2026 15:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 12 Feb 2026 13:30:00 +0000

Type	Values Removed	Values Added
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.
Title		PostgreSQL oidvector discloses a few bytes of memory
Weaknesses		CWE-1287
References		https://www.postgresql.org/support/security/CVE-2026-2003/
Metrics		cvssV3_1 `{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}`

MITRE

Status: PUBLISHED

Assigner: PostgreSQL

Published: 2026-02-12T13:00:06.108Z

Updated: 2026-02-12T14:33:37.255Z

Reserved: 2026-02-05T18:17:54.018Z

Link: CVE-2026-2003

Vulnrichment

Updated: 2026-02-12T14:33:33.860Z

NVD

Status : Awaiting Analysis

Published: 2026-02-12T14:16:02.067

Modified: 2026-02-12T15:10:37.307

Link: CVE-2026-2003

Redhat

No data.

OpenCVE Enrichment

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-2003", "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "state": "PUBLISHED", "assignerShortName": "PostgreSQL", "dateReserved": "2026-02-05T18:17:54.018Z", "datePublished": "2026-02-12T13:00:06.108Z", "dateUpdated": "2026-02-12T14:33:37.255Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "shortName": "PostgreSQL", "dateUpdated": "2026-02-12T13:00:06.108Z"}, "title": "PostgreSQL oidvector discloses a few bytes of memory", "descriptions": [{"lang": "en", "value": "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."}], "affected": [{"defaultStatus": "unaffected", "product": "PostgreSQL", "vendor": "n/a", "versions": [{"lessThan": "18.2", "status": "affected", "version": "18", "versionType": "rpm"}, {"lessThan": "17.8", "status": "affected", "version": "17", "versionType": "rpm"}, {"lessThan": "16.12", "status": "affected", "version": "16", "versionType": "rpm"}, {"lessThan": "15.16", "status": "affected", "version": "15", "versionType": "rpm"}, {"lessThan": "14.21", "status": "affected", "version": "0", "versionType": "rpm"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-1287", "type": "CWE", "description": "Improper Validation of Specified Type of Input"}]}], "references": [{"url": "https://www.postgresql.org/support/security/CVE-2026-2003/"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM"}}], "credits": [{"lang": "en", "value": "The PostgreSQL project thanks Altan Birler for reporting this problem."}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-02-12T14:33:29.418479Z", "id": "CVE-2026-2003", "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": "2026-02-12T14:33:37.255Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-2003", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-02-12T14:33:29.418479Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-12T14:33:33.860Z"}}], "cna": {"title": "PostgreSQL oidvector discloses a few bytes of memory", "credits": [{"lang": "en", "value": "The PostgreSQL project thanks Altan Birler for reporting this problem."}], "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "baseScore": 4.3, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}}], "affected": [{"vendor": "n/a", "product": "PostgreSQL", "versions": [{"status": "affected", "version": "18", "lessThan": "18.2", "versionType": "rpm"}, {"status": "affected", "version": "17", "lessThan": "17.8", "versionType": "rpm"}, {"status": "affected", "version": "16", "lessThan": "16.12", "versionType": "rpm"}, {"status": "affected", "version": "15", "lessThan": "15.16", "versionType": "rpm"}, {"status": "affected", "version": "0", "lessThan": "14.21", "versionType": "rpm"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://www.postgresql.org/support/security/CVE-2026-2003/"}], "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-1287", "description": "Improper Validation of Specified Type of Input"}]}], "providerMetadata": {"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "shortName": "PostgreSQL", "dateUpdated": "2026-02-12T13:00:06.108Z"}}}, "cveMetadata": {"cveId": "CVE-2026-2003", "state": "PUBLISHED", "dateUpdated": "2026-02-12T14:33:37.255Z", "dateReserved": "2026-02-05T18:17:54.018Z", "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "datePublished": "2026-02-12T13:00:06.108Z", "assignerShortName": "PostgreSQL"}, "dataVersion": "5.2"}