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
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: CVE-2026-32286 2448985 2448986 2448987 2448988 2448989 2448990 2448992
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-18 14:02 UTC by OSIDB Bzimport
Modified: 2026-06-03 08:01 UTC (History)
55 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:22450 0 None None None 2026-06-02 11:08:15 UTC
Red Hat Product Errata RHSA-2026:22714 0 None None None 2026-06-03 08:01:06 UTC

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.
Comment 3 Rohit Keshri 2026-03-30 07:00:53 UTC 
CVE-2026-4427 is duplicate of CVE-2026-32286
Comment 7 errata-xmlrpc 2026-06-02 11:08:11 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:22450 https://access.redhat.com/errata/RHSA-2026:22450
Comment 8 errata-xmlrpc 2026-06-03 08:01:03 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:22714 https://access.redhat.com/errata/RHSA-2026:22714
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