CVE•Published 2026-05-14•Modified 2026-05-18•0 articles on news•5 live references•NVD data

CVE-2026-6478Postgresql · Postgresql

Vulnerability data via NVD (ingested)

CVSS v3.1

6.5

MEDIUM

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

EPSS percentile

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Weaknesses (CWE)

CWE-385Covert Timing Channel

Description

Covert timing channel in comparison of MD5-hashed password in PostgreSQL authentication allows an attacker to recover user credentials sufficient to authenticate. This does not affect scram-sha-256 passwords, the default in all supported releases. However, current databases may have MD5-hashed passwords originating in upgrades from PostgreSQL 13 or earlier. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

Timeline

Published 2026-05-14

Modified 2026-05-18

External references

NVD MITRE Exploit-DB Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-6478

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Postgresql Postgresql"

All exposed Postgresql Postgresql instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Postgresql"

HTTP body or banner mentions "Postgresql" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-6478