CVE-2026-6478
Analyzed
Analyzed - Analysis Complete
BaseFortify
Publication date: 2026-05-14
Last updated on: 2026-05-18
Assigner: PostgreSQL
Description
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.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| postgresql | postgresql | From 16.0 (inc) to 16.14 (exc) |
| postgresql | postgresql | From 17.0 (inc) to 17.10 (exc) |
| postgresql | postgresql | From 18.0 (inc) to 18.4 (exc) |
| postgresql | postgresql | From 15.0 (inc) to 15.18 (exc) |
| postgresql | postgresql | to 14.23 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-385 | Covert timing channels convey information by modulating some aspect of system behavior over time, so that the program receiving the information can observe system behavior and infer protected information. |
Attack-Flow Graph
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