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CVE-20XX-?

CVE-2026-2003

4.3 MEDIUM 0.3% exploit odds Fix listed Other Server

What it is

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.

At a glance

Exploitability: Can be exploited over the network with a low-privilege account. Limited direct impact.
Exploit odds: 0.3% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-02-12 14:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 10:29 UTC Last updatedMost recent change to the record

Details

Published: 2026-02-12 14:16 UTC
Last modified: 2026-06-17 10:29 UTC
Exploit probability: 0.3% · EPSS, next 30 days
Weakness: CWE-1287
Record status: Analyzed

Affected

PostgreSQL < 14.21
PostgreSQL < 15.16
PostgreSQL < 16.12
PostgreSQL < 17.8
PostgreSQL < 18.2

Attack profile CVSS 3.1 · 4.3

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Raw vector

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

Meme: I wake up, CVE-2026-2003

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Fix and advisories

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

References

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

NVD record · CVE.org record