> CVE-2026-48526 [HIGH]

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PUBLISHED
2026-05-28 16:16
MODIFIED
2026-05-28 16:16
CVSS_SCORE V3
7.4
EPSS (Prob. Exploit)
0.43%
Top 63.0%
DATA SOURCES:
NVD đź”— 2026-05-28 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-11-01 OSV đź”— 2026-11-02 MSRC đź”— 2026-11-02

> DESCRIPTION

PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, when the verifier is decoding JSON Web Tokens, while supporting both asymmetric and HMAC algorithms, the library does not validate use of JSON Web Keys in HMAC algorithm, allowing attacker to use the issuer public key as the secret key for HMAC algorithm. This vulnerability is fixed in 2.13.0.

> 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:H/PR:N/UI:N/S:U/C:H/I:H/A:N
EXPLOITABILITY
2.2
IMPACT
5.2

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
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
High (H)
Conditions spécifiques doivent être réunies 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
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-287 CWE-347

> CWE DETAILED DESCRIPTIONS

CWE-287: Improper Authentication - When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. | CWE-347: Improper Verification of Cryptographic Signature - The product does not verify, or incorrectly verifies, the cryptographic signature for data.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.7 Container Release Update
An update is now available for Red Hat Ansible Automation Platform 2.7
Red Hat Security Advisory: fence-agents security update
An update for fence-agents 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 Scoring Sy...
Red Hat Security Advisory: fence-agents security update
An update for fence-agents 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 Sys...
Red Hat Security Advisory: Red Hat Quay 3.9.23
Red Hat Quay 3.9.23 is now available with bug fixes.
Red Hat Security Advisory: Red Hat Quay 3.12.19
Red Hat Quay 3.12.19 is now available with bug fixes.
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: Red Hat Quay 3.10.23
Red Hat Quay 3.10.23 is now available with bug fixes.
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 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: Satellite 6.19.2 Async Update
A new release is now available for Red Hat Satellite 6.18 for RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (C...
Red Hat Security Advisory: fence-agents security update
An update for fence-agents is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important...
Red Hat Security Advisory: fence-agents security update
An update for fence-agents is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common...
Red Hat Security Advisory: fence-agents security update
An update for fence-agents is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important...
Red Hat Security Advisory: fence-agents security update
An update for fence-agents is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Commo...
Red Hat Security Advisory: satellite/foreman-mcp-server-rhel9 container image available as a Technology Preview
A new satellite/foreman-mcp-server-rhel9 container image is now available as a Technology Preview in the Red Hat container registry.
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: Red Hat Quay 3.16.5
Red Hat Quay 3.16.5 is now available with bug fixes.
Red Hat Security Advisory: RHTAS 1.3.6 - Red Hat Trusted Artifact Signer Release
The 1.3.6 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 Ansible Automation Platform 2.5 Container Release Update
An update is now available for Red Hat Ansible Automation Platform 2.5
Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.7 Container Release Update
An update is now available for Red Hat Ansible Automation Platform 2.7
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 3.15.6
Red Hat Quay 3.15.6 is now available with bug fixes.
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: Migration Toolkit for Applications
A new version of Migration Toolkit for Applications (MTA) is now available.
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 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: Red Hat Ansible Automation Platform 2.7 Container Release Update
An update is now available for Red Hat Ansible Automation Platform 2.7
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: Satellite 6.18.8 Async Update
A new release is now available for Red Hat Satellite 6.18 for RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (C...
Red Hat Security Advisory: Satellite 6.16.12 Async Update
An update is now available for Red Hat Satellite 6.16 for RHEL 8 and RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring Sy...
Red Hat Security Advisory: Satellite 6.17.10 Async Update
A new release is now available for Red Hat Satellite 6.17 for RHEL 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (C...
Red Hat Security Advisory: RHTAS 1.4 - GA Release of Model Transparency 1.0.3
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: RHOAI 3.4.4 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (rocm)
Red Hat AI Inference 3.4.5 (rocm) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (cuda)
Red Hat AI Inference 3.4.5 (cuda) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (cpu)
Red Hat AI Inference 3.4.5 (cpu) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (spyre)
Red Hat AI Inference 3.4.5 (spyre) is now available.
Red Hat Security Advisory: Red Hat Quay 3.14.9
Red Hat Quay 3.14.9 is now available with bug fixes.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (rocm)
Red Hat AI Inference 3.4.5 (rocm) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (cuda)
Red Hat AI Inference 3.4.5 (cuda) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (spyre)
Red Hat AI Inference 3.4.5 (spyre) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (cpu)
Red Hat AI Inference 3.4.5 (cpu) is now available.
Red Hat Security Advisory: RHOAI 3.3.7 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.4.5 security update
Updated Red Hat Enterprise Linux AI 3.4.5 container images are now available.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.4.5 security update
Updated Red Hat Enterprise Linux AI 3.4.5 container disk images are now available.
Red Hat Security Advisory: RHOAI 3.4.5 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: RHOAI 2.25.12 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

PyJWT: Public-key JWK accepted as HMAC secret enables forged HS256 tokens when mixed families are allowed

AFFECTED PACKAGES:
Unknown / Unknown
48 versions affected
ALIASES:
GHSA-xgmm-8j9v-c9wx, PYSEC-2026-179

> HISTORIQUE DES MODIFICATIONS

Première apparition
28/05/2026 16:16
Source: NVD
📊 ENRICHISSEMENT 01/06/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-287: Improper Authentication - When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. | CWE-347: Improper Verification of Cry...
Total des modifications: 1 Dernière mise à jour: 5 months ago

> REFERENCES

https://github.com/jpadilla/pyjwt/security/advisories/GHSA-xgmm-8j9v-c9wx
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