CVE-2026-53636

4.7 Moyenne

Publiée le 02/09/2026 à 19:17 · Modifiée le 09/09/2026 à 23:04 · Analyse NVD reportée · Source : security-advisories@github.com

Description

Open edX Platform enables the authoring and delivery of online learning at any scale. Prior to commit 3a5ac85, a security vulnerability has been identified in the Open edX LMS platform's LTI (Learning Tools Interoperability) Provider implementation. The validate_timestamp_and_nonce function in lms/djangoapps/lti_provider/signature_validator.py does not validate OAuth nonces or timestamps, allowing an attacker who captures a valid LTI launch request to replay it an unlimited number of times without detection. This issue has been patched via commit 3a5ac85.

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Produits concernés

openedx-platform

Scores CVSS

Version	Score	Source	Vecteur
3.1	4.7 Moyenne	security-advisories@github.com	`CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N`

Faiblesses (CWE)

CWE-294

Références

https://github.com/openedx/openedx-platform/commit/0a92cf25de8844bf840ffd5d18dcfd940031a2ba
https://github.com/openedx/openedx-platform/commit/3a5ac856c79557c5c74d8b3e6578f289d7cceecd
https://github.com/openedx/openedx-platform/commit/50af17b05d82a8c7e8e690cc2783a8a0ba330bc3
https://github.com/openedx/openedx-platform/security/advisories/GHSA-6gm5-c49g-p3h9
https://github.com/openedx/openedx-platform/security/advisories/GHSA-6gm5-c49g-p3h9

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories