CVE-2026-120199

Description

LearnHouse before 1.1.1 contains a missing authorization vulnerability in the assignment API that allows authenticated users to read other users' grades and submissions. Attackers can supply another user_id to the submissions grade endpoint or query submission read functions to view other students' work, grades and instructor feedback.

References

• https://github.com/learnhouse/learnhouse
• https://github.com/learnhouse/learnhouse/blob/1.1.0/apps/api/src/services/courses/activities/assignments.py#L1673
• https://github.com/learnhouse/learnhouse/commit/844a8a7787f0c42d466be604aaf47d296748b1b3
• https://github.com/learnhouse/learnhouse/issues/1184
• https://github.com/learnhouse/learnhouse/pull/1187