Vulnerability · Published Oct 31, 2026 · Assigned by VulnCheck

CVE-2026-120199LearnHouse before 1.1.1 Missing Authorization via Assignment Submissions API

Medium 4.3

In plain English

A medium-severity authorization bypass via user-controlled key in learnhouse from learnhouse. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.2%top 87.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
learnhouse	learnhouse	0 – before 1.1.1

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

GitHub Issue #1184 issue-tracking
https://github.com/learnhouse/learnhouse/commit/844a8a7787f0c42d466be604aaf47d296748b1b3 patch
https://github.com/learnhouse/learnhouse/pull/1187 issue-tracking, patch
https://github.com/learnhouse/learnhouse/blob/1.1.0/apps/api/src/services/courses/activities/assignments.py#L1673 technical-description
https://github.com/learnhouse/learnhouse product
VulnCheck Advisory: LearnHouse before 1.1.1 Missing Authorization via Assignment Submissions API third-party-advisory