Bug 2448626 (CVE-2026-4427, GHSA-jqcq-xjh3-6g23) - CVE-2026-4427 github.com/jackc/pgproto3: pgproto3: Denial of Service via negative field length in DataRow message
Summary: CVE-2026-4427 github.com/jackc/pgproto3: pgproto3: Denial of Service via nega...
Keywords:
Status: NEW
Alias: CVE-2026-4427, GHSA-jqcq-xjh3-6g23
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Whiteboard:
Depends On: 2448985 2448986 2448987 2448988 2448989 2448990 2448992
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-18 14:02 UTC by OSIDB Bzimport
Modified: 2026-03-19 13:16 UTC (History)
54 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-03-18 14:02:42 UTC 
The DataRow.Decode function fails to properly validate field lengths. A malicious or compromised PostgreSQL server can send a DataRow message with a negative field length, causing a slice bounds out of range panic.
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