Upstream information

CVE-2026-48524 at MITRE

Description

PyJWT is a JSON Web Token implementation in Python. Prior to 2.13.0, PyJWKClient.get_signing_key() forces a fresh HTTP request to the JWKS endpoint for every JWT with an unknown kid value, with no rate limiting. Since kid comes from the unverified token header, an attacker can trigger unlimited outbound requests. The vulnerability surfaces only when a JWKS fetch fails; an attacker can attempt to provoke that with sustained unknown-kid traffic, but the outcome depends on upstream JWKS-endpoint behavior (rate limiting, transient errors) which is beyond the attacker's control. This vulnerability is fixed in 2.13.0.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having low severity.

CVSS v3 Scores
CVSS detail CNA (GitHub) SUSE
Base Score 3.7 3.7
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector Network Network
Attack Complexity High High
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact Low Low
CVSSv3 Version 3.1 3.1
CVSS v4 Scores
CVSS detail SUSE
Base Score 6.3
Vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Attack Vector Network
Attack Complexity Low
Attack Requirements Present
Privileges Required None
User Interaction None
Vulnerable System Confidentiality Impact None
Vulnerable System Integrity Impact None
Vulnerable System Availability Impact Low
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
CVSSv4 Version 4.0
SUSE Bugzilla entry: 1266800 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
Image SL-Micro-Azure
Image SL-Micro-BYOS-Azure
Image SL-Micro-BYOS-EC2
Image SL-Micro-EC2
Image SUSE-Multi-Linux-Manager-Proxy-BYOS-Azure
Image SUSE-Multi-Linux-Manager-Proxy-BYOS-EC2
Image SUSE-Multi-Linux-Manager-Server-BYOS-Azure
Image SUSE-Multi-Linux-Manager-Server-BYOS-EC2
Image SUSE-Multi-Linux-Manager-Server-EC2-llc
Image SUSE-Multi-Linux-Manager-Server-EC2-ltd
  • python311-PyJWT >= 2.12.1-slfo.1.1_2.1
Image SLE-Micro-BYOS-EC2
Image SLE-Micro-EC2
  • python311-PyJWT >= 2.9.0-3.1
Image SLE-Micro-BYOS-GCE
Image SLE-Micro-GCE
  • google-guest-agent >= 20250506.01-160000.2.1
Image SLE-Micro
Image SLE-Micro-Azure
Image SLE-Micro-BYOS
Image SLE-Micro-BYOS-Azure
  • python311-PyJWT >= 2.9.0-3.1
  • python311-pyasn1 >= 0.5.0-3.1
Image SLES-Azure-3P
Image SLES-Azure-Basic
Image SLES-Azure-Standard
Image SLES-BYOS-Azure
Image SLES-BYOS-EC2
Image SLES-CHOST-BYOS-Aliyun
Image SLES-CHOST-BYOS-Azure
Image SLES-CHOST-BYOS-EC2
Image SLES-CHOST-BYOS-GDC
Image SLES-CHOST-BYOS-SAP-CCloud
Image SLES-EC2
Image SLES-EC2-ECS
Image SLES-Hardened-BYOS-Azure
Image SLES-Hardened-BYOS-EC2
Image SLES-SAP-Azure
Image SLES-SAP-Azure-3P
Image SLES-SAP-BYOS-Azure
Image SLES-SAP-BYOS-EC2
Image SLES-SAP-BYOS-GCE
Image SLES-SAP-EC2
Image SLES-SAP-GCE
Image SLES-SAPCAL-Azure
Image SLES-SAPCAL-EC2
  • python313-PyJWT >= 2.12.1-160000.2.1
Image SLES15-SP4-BYOS
Image SLES15-SP4-BYOS-Azure
Image SLES15-SP4-BYOS-EC2
Image SLES15-SP4-CHOST-BYOS
Image SLES15-SP4-CHOST-BYOS-Aliyun
Image SLES15-SP4-CHOST-BYOS-Azure
Image SLES15-SP4-CHOST-BYOS-EC2
Image SLES15-SP4-CHOST-BYOS-SAP-CCloud
Image SLES15-SP4-HPC-BYOS
Image SLES15-SP4-HPC-BYOS-Azure
Image SLES15-SP4-HPC-BYOS-EC2
Image SLES15-SP4-HPC-EC2
Image SLES15-SP4-Hardened-BYOS
Image SLES15-SP4-Hardened-BYOS-Azure
Image SLES15-SP4-Hardened-BYOS-EC2
Image SLES15-SP4-SAP
Image SLES15-SP4-SAP-Azure
Image SLES15-SP4-SAP-BYOS
Image SLES15-SP4-SAP-BYOS-Azure
Image SLES15-SP4-SAP-BYOS-EC2
Image SLES15-SP4-SAP-EC2
Image SLES15-SP4-SAP-Hardened
Image SLES15-SP4-SAP-Hardened-Azure
Image SLES15-SP4-SAP-Hardened-BYOS
Image SLES15-SP4-SAP-Hardened-BYOS-Azure
Image SLES15-SP4-SAP-Hardened-BYOS-EC2
Image SLES15-SP4-SAPCAL
Image SLES15-SP4-SAPCAL-Azure
Image SLES15-SP4-SAPCAL-EC2
Image SLES15-SP5-HPC-Azure
Image SLES15-SP5-HPC-BYOS-Azure
Image SLES15-SP5-HPC-BYOS-EC2
Image SLES15-SP5-SAPCAL-Azure
Image SLES15-SP5-SAPCAL-EC2
Image SLES15-SP6-HPC
Image SLES15-SP6-HPC-Azure
Image SLES15-SP6-HPC-BYOS
Image SLES15-SP6-HPC-BYOS-Azure
Image SLES15-SP6-HPC-BYOS-EC2
Image SLES15-SP6-HPC-EC2
Image SLES15-SP6-SAP-BYOS
Image SLES15-SP6-SAP-BYOS-EC2
Image SLES15-SP6-SAP-Hardened-BYOS
Image SLES15-SP6-SAP-Hardened-BYOS-EC2
Image SLES15-SP6-SAP-Hardened-EC2
Image SLES15-SP7-Azure-3P
Image SLES15-SP7-Azure-Basic
Image SLES15-SP7-Azure-Standard
Image SLES15-SP7-BYOS-Azure
Image SLES15-SP7-BYOS-EC2
Image SLES15-SP7-CHOST-BYOS-Aliyun
Image SLES15-SP7-CHOST-BYOS-Azure
Image SLES15-SP7-CHOST-BYOS-EC2
Image SLES15-SP7-CHOST-BYOS-GDC
Image SLES15-SP7-CHOST-BYOS-SAP-CCloud
Image SLES15-SP7-EC2
Image SLES15-SP7-EC2-ECS-HVM
Image SLES15-SP7-HPC-Azure
Image SLES15-SP7-HPC-BYOS-Azure
Image SLES15-SP7-HPC-BYOS-EC2
Image SLES15-SP7-Hardened-BYOS-Azure
Image SLES15-SP7-Hardened-BYOS-EC2
Image SLES15-SP7-SAP-Azure
Image SLES15-SP7-SAP-Azure-3P
Image SLES15-SP7-SAP-BYOS-Azure
Image SLES15-SP7-SAP-BYOS-EC2
Image SLES15-SP7-SAP-EC2
Image SLES15-SP7-SAP-Hardened-Azure
Image SLES15-SP7-SAP-Hardened-BYOS-Azure
Image SLES15-SP7-SAP-Hardened-BYOS-EC2
Image SLES15-SP7-SAPCAL-Azure
Image SLES15-SP7-SAPCAL-EC2
  • python311-PyJWT >= 2.8.0-150400.8.13.1
SUSE Linux Enterprise Desktop 15 SP7
SUSE Linux Enterprise High Performance Computing 15 SP7
SUSE Linux Enterprise Module for Python 3 15 SP7
SUSE Linux Enterprise Server 15 SP7
SUSE Linux Enterprise Server for SAP Applications 15 SP7
  • python311-PyJWT >= 2.8.0-150400.8.13.1
 Patchnames:
SUSE-SLE-Module-Python3-15-SP7-2026-2626
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
  • python311-PyJWT >= 2.8.0-150400.8.13.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-2626
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • python311-PyJWT >= 2.8.0-150400.8.13.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-2626
SUSE Linux Enterprise High Performance Computing 15 SP4
SUSE Linux Enterprise Module for Public Cloud 15 SP4
SUSE Linux Enterprise Server 15 SP4
SUSE Manager Proxy 4.3
SUSE Manager Retail Branch Server 4.3
SUSE Manager Server 4.3
  • python311-PyJWT >= 2.8.0-150400.8.13.1
 Patchnames:
SUSE-SLE-Module-Public-Cloud-15-SP4-2026-2626
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • python311-PyJWT >= 2.8.0-150400.8.13.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-2626
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • python311-PyJWT >= 2.8.0-150400.8.13.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-2626
SUSE Linux Enterprise Server 15 SP4-LTSS
  • python311-PyJWT >= 2.8.0-150400.8.13.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-2626
SUSE Linux Enterprise Server 15 SP5-LTSS
  • python311-PyJWT >= 2.8.0-150400.8.13.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-2626
SUSE Linux Enterprise Server 15 SP6-LTSS
  • python311-PyJWT >= 2.8.0-150400.8.13.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2626
SUSE Linux Enterprise Server 16.0
SUSE Linux Enterprise Server for SAP applications 16.0
  • python313-PyJWT >= 2.12.1-160000.2.1
 Patchnames:
SUSE-SLES-16.0-960
SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • python311-PyJWT >= 2.8.0-150400.8.13.1
 Patchnames:
SUSE-SLE-Module-Public-Cloud-15-SP4-2026-2626
SUSE-SLE-Product-SLES_SAP-15-SP4-2026-2626
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • python311-PyJWT >= 2.8.0-150400.8.13.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP5-2026-2626
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • python311-PyJWT >= 2.8.0-150400.8.13.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2626
SUSE Linux Micro 6.0
  • python311-PyJWT >= 2.9.0-3.1
 Patchnames:
SUSE-SLE-Micro-6.0-757
SUSE Linux Micro 6.1
  • python311-PyJWT >= 2.12.1-slfo.1.1_2.1
 Patchnames:
SUSE-SLE-Micro-6.1-580
SUSE Linux Micro 6.2
  • python313-PyJWT >= 2.12.1-160000.2.1
 Patchnames:
SUSE-SL-Micro-6.2-960
openSUSE Leap 16.0
  • python313-PyJWT >= 2.12.1-160000.2.1
 Patchnames:
openSUSE-Leap-16.0-960
openSUSE Tumbleweed
  • python311-PyJWT >= 2.13.0-1.1
  • python313-PyJWT >= 2.13.0-1.1
  • python314-PyJWT >= 2.13.0-1.1
 Patchnames:
openSUSE-Tumbleweed-2026-11024

First public cloud image revisions this CVE is fixed in:

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP7 python-PyJWT Released
SUSE Linux Enterprise High Performance Computing 12 python-PyJWT Not affected
SUSE Linux Enterprise High Performance Computing 15 SP7 python-PyJWT Released
SUSE Linux Enterprise Micro 5.5 python-PyJWT Won't fix
SUSE Linux Enterprise Module for Basesystem 15 SP7 python-PyJWT Won't fix
SUSE Linux Enterprise Module for Python 3 15 SP7 python-PyJWT Released
SUSE Linux Enterprise Server 15 SP7 python-PyJWT Released
SUSE Linux Enterprise Server 16.0 python-PyJWT Released
SUSE Linux Enterprise Server 16.1 python-PyJWT Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 python-PyJWT Released
SUSE Linux Enterprise Server for SAP applications 16.0 python-PyJWT Released
SUSE Linux Enterprise Server for SAP applications 16.1 python-PyJWT Affected
SUSE Linux Micro 6.0 python-PyJWT Released
SUSE Linux Micro 6.1 python-PyJWT Released
SUSE Linux Micro 6.2 python-PyJWT Released
openSUSE Leap 16.0 python-PyJWT Released
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP4 python-PyJWT Released
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS python-PyJWT Released
SUSE Linux Enterprise High Performance Computing 15 SP5 python-PyJWT Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS python-PyJWT Released
SUSE Linux Enterprise Module for Basesystem 15 SP4 python-PyJWT Won't fix
SUSE Linux Enterprise Module for Basesystem 15 SP5 python-PyJWT Won't fix
SUSE Linux Enterprise Module for Basesystem 15 SP6 python-PyJWT Won't fix
SUSE Linux Enterprise Module for Public Cloud 12 python-PyJWT Not affected
SUSE Linux Enterprise Module for Public Cloud 15 SP4 python-PyJWT Released
SUSE Linux Enterprise Module for Python 3 15 SP4 python-PyJWT Affected
SUSE Linux Enterprise Module for Python 3 15 SP5 python-PyJWT Affected
SUSE Linux Enterprise Module for Python 3 15 SP6 python-PyJWT Affected
SUSE Linux Enterprise Server 12 SP5 python-PyJWT Not affected
SUSE Linux Enterprise Server 15 SP4 python-PyJWT Released
SUSE Linux Enterprise Server 15 SP4-LTSS python-PyJWT Released
SUSE Linux Enterprise Server 15 SP5 python-PyJWT Won't fix
SUSE Linux Enterprise Server 15 SP5-LTSS python-PyJWT Released
SUSE Linux Enterprise Server 15 SP6 python-PyJWT Won't fix
SUSE Linux Enterprise Server 15 SP6-LTSS python-PyJWT Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 python-PyJWT Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 python-PyJWT Released
SUSE Manager Proxy 4.3 python-PyJWT Released
SUSE Manager Proxy LTS 4.3 python-PyJWT Won't fix
SUSE Manager Retail Branch Server 4.3 python-PyJWT Released
SUSE Manager Retail Branch Server LTS 4.3 python-PyJWT Won't fix
SUSE Manager Server 4.3 python-PyJWT Released
SUSE Manager Server LTS 4.3 python-PyJWT Won't fix
Products past their end of life and not receiving proactive updates anymore.
SUSE CaaS Platform 3.0 python-PyJWT Not affected
SUSE CaaS Platform 4.0 python-PyJWT Not affected
SUSE Enterprise Storage 6 python-PyJWT Not affected
SUSE Enterprise Storage 7 python-PyJWT Not affected
SUSE Enterprise Storage 7.1 python-PyJWT Won't fix
SUSE Linux Enterprise Desktop 15 SP1 python-PyJWT Not affected
SUSE Linux Enterprise Desktop 15 SP2 python-PyJWT Won't fix
SUSE Linux Enterprise Desktop 15 SP3 python-PyJWT Won't fix
SUSE Linux Enterprise Desktop 15 SP4 python-PyJWT Won't fix
SUSE Linux Enterprise Desktop 15 SP5 python-PyJWT Won't fix
SUSE Linux Enterprise Desktop 15 SP6 python-PyJWT Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP1 python-PyJWT Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS python-PyJWT Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS python-PyJWT Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2 python-PyJWT Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS python-PyJWT Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS python-PyJWT Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP3 python-PyJWT Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS python-PyJWT Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS python-PyJWT Won't fix
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS python-PyJWT Released
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS python-PyJWT Released
SUSE Linux Enterprise High Performance Computing 15 SP6 python-PyJWT Won't fix
SUSE Linux Enterprise Module for Basesystem 15 SP1 python-PyJWT Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 python-PyJWT Won't fix
SUSE Linux Enterprise Module for Basesystem 15 SP3 python-PyJWT Won't fix
SUSE Linux Enterprise Module for Package Hub 15 SP1 python-PyJWT Not affected
SUSE Linux Enterprise Module for Package Hub 15 SP2 python-PyJWT Won't fix
SUSE Linux Enterprise Module for Package Hub 15 SP3 python-PyJWT Won't fix
SUSE Linux Enterprise Module for Package Hub 15 SP5 python-PyJWT Won't fix
SUSE Linux Enterprise Module for Public Cloud 15 SP1 python-PyJWT Not affected
SUSE Linux Enterprise Module for Public Cloud 15 SP2 python-PyJWT Not affected
SUSE Linux Enterprise Real Time 15 SP2 python-PyJWT Won't fix
SUSE Linux Enterprise Real Time 15 SP3 python-PyJWT Won't fix
SUSE Linux Enterprise Real Time 15 SP4 python-PyJWT Won't fix
SUSE Linux Enterprise Server 12 python-PyJWT Not affected
SUSE Linux Enterprise Server 12 SP3 python-PyJWT Not affected
SUSE Linux Enterprise Server 12 SP4 python-PyJWT Not affected
SUSE Linux Enterprise Server 15 SP1 python-PyJWT Not affected
SUSE Linux Enterprise Server 15 SP1-BCL python-PyJWT Not affected
SUSE Linux Enterprise Server 15 SP1-LTSS python-PyJWT Not affected
SUSE Linux Enterprise Server 15 SP2 python-PyJWT Not affected
SUSE Linux Enterprise Server 15 SP2-BCL python-PyJWT Won't fix
SUSE Linux Enterprise Server 15 SP2-LTSS python-PyJWT Won't fix
SUSE Linux Enterprise Server 15 SP3 python-PyJWT Won't fix
SUSE Linux Enterprise Server 15 SP3-BCL python-PyJWT Won't fix
SUSE Linux Enterprise Server 15 SP3-LTSS python-PyJWT Won't fix
SUSE Linux Enterprise Server for SAP Applications 12 python-PyJWT Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 python-PyJWT Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 python-PyJWT Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 python-PyJWT Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 python-PyJWT Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 python-PyJWT Won't fix
SUSE Linux Enterprise Server for SAP Applications 15 SP4 python-PyJWT Released
SUSE Linux Enterprise Server for SAP Applications 15 SP5 python-PyJWT Released
SUSE Manager Proxy 4.0 python-PyJWT Not affected
SUSE Manager Proxy 4.1 python-PyJWT Not affected
SUSE Manager Proxy 4.2 python-PyJWT Won't fix
SUSE Manager Retail Branch Server 4.0 python-PyJWT Not affected
SUSE Manager Retail Branch Server 4.1 python-PyJWT Not affected
SUSE Manager Retail Branch Server 4.2 python-PyJWT Won't fix
SUSE Manager Server 3.2 python-PyJWT Not affected
SUSE Manager Server 4.0 python-PyJWT Not affected
SUSE Manager Server 4.1 python-PyJWT Not affected
SUSE Manager Server 4.2 python-PyJWT Won't fix
SUSE OpenStack Cloud 7 python-PyJWT Not affected
openSUSE Leap 15.3 python-PyJWT Won't fix
openSUSE Leap 15.4 python-PyJWT Released
openSUSE Leap 15.5 python-PyJWT Won't fix
openSUSE Leap 15.6 python-PyJWT Affected

SUSE Timeline for this CVE

CVE page created: Thu May 28 20:18:46 2026
CVE page last modified: Thu Jul 9 18:45:46 2026