Get a Demo

Let's Patch It!

Book a short call with one our specialists, we'll walk you through how Endor Patches work, and ask you a few questions about your environment (like your primary programming languages and repository management). We'll also send you an email right after you fill out the form, feel free to reply with any questions you have in advance!

CVE

CVE-2026-4427

Duplicate Advisory: pgproto3: Negative field length panics in DataRow.Decode
Back to all
CVE

CVE-2026-4427

Duplicate Advisory: pgproto3: Negative field length panics in DataRow.Decode

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-jqcq-xjh3-6g23. This link is maintained to preserve external references.

Original Description

A flaw was found in pgproto3. A malicious or compromised PostgreSQL server can exploit this by sending a DataRow message with a negative field length. This input validation vulnerability can lead to a denial of service (DoS) due to a slice bounds out of range panic.

Package Versions Affected

Package Version
patch Availability
No items found.

Automatically patch vulnerabilities without upgrading

Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request

CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
0
-
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
C
H
U
-

Related Resources

No items found.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-4427, https://github.com/golang/vulndb/issues/4518, https://github.com/jackc/pgx/issues/2507, https://access.redhat.com/security/cve/CVE-2026-4427, https://bugzilla.redhat.com/show_bug.cgi?id=2448626, https://github.com/jackc/pgproto3, https://securityinfinity.com/research/memory-safety-vulnerabilities-in-go-postgresql-wire-protocol-parsers-pgproto3-pgx

Severity

7.5

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.5
EPSS Probability
0%
EPSS Percentile
0%
Introduced Version
0
Fix Available
3.6.19-r4,3.6.19-r5,1.16.1-r1,1.16.4-r3,2.188.1-r0,1.15.0-r0,2.12.4-r33,2.13.5-r5,2.14.3-r5,26.2.0-r0,1.129.4-r5,4.19.1-r8,2.4.0-r4,1.35.4-r6,1.36.4-r8,1.37.3-r7,1.38.1-r2,15.5.4-r14,16.5.18-r9,1.16.3-r30,1.17.6-r23,1.18.5-r18,1.19.5-r10,1.20.4-r3,1.21.4-r2,1.20.4-r6,1.12.1-r36,1.13.0-r37

Fix Critical Vulnerabilities Instantly

Secure your app without upgrading.
Fix Without Upgrading