CVE-2026-71322Network attack vector

Authenticated certificate export via misplaced ownership check

Published Aug 18, 2026 · Updated Aug 19, 2026

Authorization bypass in Netflix Lemur before 1.9.3 allows remote authenticated users to export certificates via POST /api/1/certificates//export. In CertificateExport in lemur/certificates/views.py, the CertificatePermission ownership check sits inside the plugin.requires_key branch, so a plugin that declares requires_key false reaches plugin.export on another user's certificate without any ownership test while still receiving cert.private_key. With the bundled JavaTruststoreExportPlugin, the current effect is unauthorized export of public certificate body and chain plus false key_view audit entries; private-key disclosure becomes reachable if another requires_key false export plugin consumes the supplied key.

CVSS severity4.3
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Netflix Lemur before 1.9.3 allows remote authenticated users to export certificates via POST /api/1/certificates//export. In CertificateExport in lemur/certificates/views.py, the CertificatePermission ownership check sits inside the plugin.requires_key branch, so a plugin that declares requires_key false reaches plugin.export on another user's certificate without any ownership test while still receiving cert.private_key. With the bundled JavaTruststoreExportPlugin, the current effect is unauthorized export of public certificate body and chain plus false key_view audit entries; private-key disclosure becomes reachable if another requires_key false export plugin consumes the supplied key.

The record

CVE
CVE-2026-71322
Published
Aug 18, 2026
Updated
Aug 19, 2026
Vendor
Netflix
Product
Lemur
Classifications
CWE-862
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.9.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Netflix · Lemurversion=< 1.9.3

Published CVSS scores

4.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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