Detections
Analytics

SCA: security update for richie (GHSA-xjhr-fm27-4hmx)

medium Tenable Cloud Security Plugin ID 438055

Description

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

 - An issue in OpenFUN Richie (LMS) in src/richie/apps/courses/api.py. The application used the non-constant
 time == operator for HMAC signature verification in the sync_course_run_from_request function. This allows
 remote attackers to forge valid signatures and bypass authentication by measuring response time
 discrepancies (CVE-2026-26717)

See Also

https://github.com/advisories/GHSA-xjhr-fm27-4hmx

Plugin Details

Severity: Medium

ID: 438055

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 3/2/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.71

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-26717

CVSS v3

Risk Factor: Medium

Base Score: 4.8

Temporal Score: 4.2

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 2/25/2026

Vulnerability Publication Date: 2/25/2026

Reference Information

CVE: CVE-2026-26717

cwe: CWE-208