Detections
Analytics

SCA: security update for lemur (GHSA-cfh6-pv5c-38jv)

high Tenable Cloud Security Plugin ID 446078

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Lemur manages TLS certificate creation. From 0.5.0 until 1.9.3, certificate create, upload, and edit
 requests accepted replaces[] or replacements identifiers that AssociatedCertificateSchema resolved with
 fetch_objects without a CertificatePermission check. Assigning those objects to Certificate.replaces
 invoked an append listener that disabled the victim certificate notifications and marked it as replaced.
 The victim was then excluded from get_all_pending_reissue, and certificate_rotate could deploy the
 attacker certificate to endpoints serving the victim. An authenticated non-read-only user could target
 certificates for which the user had no ownership or role, suppress lifecycle automation, and cause fleet-
 wide TLS disruption or unauthorized substitution. The fix authorizes every referenced replacement
 certificate before mutation. This issue is fixed in version 1.9.3. (CVE-2026-71308)

Solution

Update the lemur library and its related packages to version 1.9.3 or later.

See Also

https://github.com/advisories/GHSA-cfh6-pv5c-38jv

Plugin Details

Severity: High

ID: 446078

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/19/2026

Updated: 8/19/2026

Risk Information

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:C/A:C

CVSS Score Source: CVE-2026-71308

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/18/2026

Vulnerability Publication Date: 8/18/2026

Reference Information

CVE: CVE-2026-71308