CVE-2026-85272

Open edX Platform enables the authoring and delivery of online learning at any scale. From Aspen.1 until Ulmo and Verawood.1, openedx/core/lib/extractarchive.py uses isbadpath to validate safeextractall targets by comparing resolved path strings with startswith instead of comparing path component...

CVE-2026-85272 Open edX Platform: Path traversal via prefix-bypass in safe_extractall Path Validation

Open edX Platform enables the authoring and delivery of online learning at any scale. From Aspen.1 until Ulmo and Verawood.1, openedx/core/lib/extractarchive.py uses isbadpath to validate safeextractall targets by comparing resolved path strings with startswith instead of comparing path component...

CVE-2026-85272 Open edX Platform: Path traversal via prefix-bypass in safe_extractall Path Validation

Open edX Platform enables the authoring and delivery of online learning at any scale. From Aspen.1 until Ulmo and Verawood.1, openedx/core/lib/extractarchive.py uses isbadpath to validate safeextractall targets by comparing resolved path strings with startswith instead of comparing path component...

CVE-2026-85272

CVE-2026-85272 affects Open edX Platform from Aspen.1 through the Ulmo and Verawood.1 releases. The root cause lies in openedx/core/lib/extract_archive.py, where the _is_bad_path function validates extracted archive targets using a string prefix comparison (startswith) instead of comparing indivi...

EUVD-2026-83399

Open edX Platform enables the authoring and delivery of online learning at any scale. From Aspen.1 until Ulmo and Verawood.1, openedx/core/lib/extractarchive.py uses isbadpath to validate safeextractall targets by comparing resolved path strings with startswith instead of comparing path component...