> CVE-2026-4427 [HIGH]

« BACK_TO_HOME
PUBLISHED
2026-03-19 15:16
MODIFIED
2026-03-19 15:16
CVSS_SCORE V3
7.5
EPSS (Prob. Exploit)
0.09%
Top 75.1%
DATA SOURCES:
NVD 🔗 2026-03-19 RED HAT 🔗 2026-03-22 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-08 GITHUB 🔗 2026-11-05

> 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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EXPLOITABILITY
3.9
IMPACT
3.6

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-129

> CWE DETAILED DESCRIPTIONS

CWE-129: Improper Validation of Array Index - The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: RHTAS 1.3.4 - Red Hat Trusted Artifact Signer Release
The 1.3.4 release of Red Hat Trusted Artifact Signer OpenShift Operator. For more details please visit the product documentation at https://access.redhat.com/documentation/en-us/red_hat_trusted_artifa...
Red Hat Security Advisory: RHTAS 1.3.4 - Red Hat Trusted Artifact Signer Release
The 1.3.4 release of Red Hat Trusted Artifact Signer OpenShift Operator. For more details please visit the product documentation at https://access.redhat.com/documentation/en-us/red_hat_trusted_artifa...
Red Hat Security Advisory: RHTAS 1.3.4 - Red Hat Trusted Artifact Signer Release
The 1.3.4 release of Red Hat Trusted Artifact Signer OpenShift Operator. For more details please visit the product documentation at https://access.redhat.com/documentation/en-us/red_hat_trusted_artifa...
Red Hat Security Advisory: Red Hat Quay 3.9.21
Red Hat Quay 3.9.21 is now available with bug fixes.
Red Hat Security Advisory: Red Hat Quay 3.10.21
Red Hat Quay 3.10.21 is now available with bug fixes.
Red Hat Security Advisory: Red Hat Quay 3.12.17
Red Hat Quay 3.12.17 is now available with bug fixes.
Red Hat Security Advisory: Red Hat Quay 3.16.4
Red Hat Quay 3.16.4 is now available with bug fixes.
Red Hat Security Advisory: Multicluster Global Hub 1.5.4 security update
Multicluster Global Hub v1.5.4 general availability release images, which provide security fixes, bug fixes, and updated container images. Red Hat Product Security has rated this update as having a s...
Red Hat Security Advisory: Red Hat Quay 3.14.8
Red Hat Quay 3.14.8 is now available with bug fixes.
Red Hat Security Advisory: Multicluster Global Hub 1.4.5 security update
Multicluster Global Hub v1.4.5 general availability release images, which provide security fixes, bug fixes, and updated container images. Red Hat Product Security has rated this update as having a s...
Red Hat Security Advisory: Red Hat Quay 3.17.2
Red Hat Quay 3.17.2 is now available with bug fixes.
Red Hat Security Advisory: osbuild-composer security update
An update for osbuild-composer is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scorin...
Red Hat Security Advisory: osbuild-composer security update
An update for osbuild-composer is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring...
Red Hat Security Advisory: Red Hat Quay 3.9.22
Red Hat Quay 3.9.22 is now available with bug fixes.
Red Hat Security Advisory: Multicluster Global Hub 1.6.2 security update
Multicluster Global Hub v1.6.2 general availability release images, which provide security fixes, bug fixes, and updated container images. Red Hat Product Security has rated this update as having a s...
Red Hat Security Advisory: Red Hat Quay 3.15.5
Red Hat Quay 3.15.5 is now available with bug fixes.
Red Hat Security Advisory: Red Hat Quay 3.18.0
Red Hat Quay 3.18.0 is now available with bug fixes and feature enhancements.
Red Hat Security Advisory: Red Hat Quay 3.14.9
Red Hat Quay 3.14.9 is now available with bug fixes.

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Important

> GITHUB SECURITY ADVISORY

GHSA-x6gf-mpr2-68h6 HIGH

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

AFFECTED PACKAGES:
GO / github.com/jackc/pgproto3/v2
<= 2.3.3

> HISTORIQUE DES MODIFICATIONS

Première apparition
19/03/2026 15:16
Source: NVD
📊 ENRICHISSEMENT 01/04/2026 06:02
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-129: Improper Validation of Array Index - The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure ...
📊 ENRICHISSEMENT 22/03/2026 05:01
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 22/03/2026 05:01
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 3 Dernière mise à jour: 7 months ago

> REFERENCES

https://access.redhat.com/security/cve/CVE-2026-4427
https://bugzilla.redhat.com/show_bug.cgi?id=2448626
https://github.com/golang/vulndb/issues/4518
https://github.com/jackc/pgproto3
https://github.com/jackc/pgx/issues/2507
https://securityinfinity.com/research/memory-safety-vulnerabilities-in-go-postgr...
« BACK_TO_HOME