> CVE-2026-39892 [MEDIUM]

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PUBLISHED
2026-04-08 21:17
MODIFIED
2026-04-08 21:25
CVSS_SCORE V3
6.9
EPSS (Prob. Exploit)
0.76%
Top 45.3%
DATA SOURCES:
NVD 🔗 2026-04-08 RED HAT 🔗 2026-04-12 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25

> DESCRIPTION

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 45.0.0 to before 46.0.7, if a non-contiguous buffer was passed to APIs which accepted Python buffers (e.g. Hash.update()), this could lead to buffer overflows. This vulnerability is fixed in 46.0.7.

> AFFECTED_PRODUCTS

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

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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
Low (L)
Interruption partielle du service possible

> RÉSUMÉ DES IMPACTS

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

> WEAKNESSES

CWE-119

> CWE DETAILED DESCRIPTIONS

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer - The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.

> RED HAT SECURITY ADVISORIES

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: A Subscription Management tool for finding and reporting Red Hat product usage
A Subscription Management tool for finding and reporting Red Hat product usage
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: Red Hat Quay 3.17.2
Red Hat Quay 3.17.2 is now available with bug fixes.
Red Hat Security Advisory: Red Hat Quay 3.12.18
Red Hat Quay 3.12.18 is now available with bug fixes.
Red Hat Security Advisory: Red Hat Quay 3.10.22
Red Hat Quay 3.10.22 is now available with bug fixes.
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: RHTAS 1.4 - GA Release of Model Transparency 1.0.1
The GA release of the RHTAS Model Transparency CLI image. For more details please visit the product documentation at https://access.redhat.com/documentation/en-us/red_hat_trusted_artifact_signer/1.4
Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.6 Container Release Update
An update is now available for Red Hat Ansible Automation Platform 2.6
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 Ansible Automation Platform 2.5 Product Security and Bug Fix Update
An update is now available for Red Hat Ansible Automation Platform 2.5 Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (...
Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update
An update is now available for Red Hat Ansible Automation Platform 2.6 Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (...
Red Hat Security Advisory: RHOAI 2.25.7 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: A Subscription Management tool for finding and reporting Red Hat product usage
A Subscription Management tool for finding and reporting Red Hat product usage
Red Hat Security Advisory: Red Hat AI Inference Server 3.3.5 (CUDA)
Red Hat AI Inference Server 3.3.5 (CUDA) is now available.
Red Hat Security Advisory: Red Hat AI Inference Server 3.3.5 (ROCm)
Red Hat AI Inference Server 3.3.5 (ROCm) is now available.
Red Hat Security Advisory: RHOAI 3.3.5 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: RHOAI 2.25.9 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.3.5
Updated Red Hat Enterprise Linux AI 3.3.5 container images are now available.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.3.5
Updated Red Hat Enterprise Linux AI 3.3.5 container images are now available.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.3.5
Updated Red Hat Enterprise Linux AI 3.3.5 container images are now available.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.3.5
Updated Red Hat Enterprise Linux AI 3.3.5 container images are now available.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.3.5
Updated Red Hat Enterprise Linux AI 3.3.5 container images are now available.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.3.5
Updated Red Hat Enterprise Linux AI 3.3.5 container images are now available.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.3.5
Updated Red Hat Enterprise Linux AI 3.3.5 container disk images are now available.
Red Hat Security Advisory: RHOAI 2.25.12 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Moderate

> HISTORIQUE DES MODIFICATIONS

Première apparition
08/04/2026 21:17
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer - The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buff...
Nouvelle valeur:
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer - The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buff...
📊 ENRICHISSEMENT 01/05/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer - The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buff...
📊 ENRICHISSEMENT 12/04/2026 05:01
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 12/04/2026 05:01
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 4 Dernière mise à jour: 1 week ago

> REFERENCES

https://github.com/pyca/cryptography/security/advisories/GHSA-p423-j2cm-9vmq
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