PyPI/bokeh CVE-2026-21883: medium 5.4, EPSS 0.18%

Bokeh server applications have Incomplete Origin Validation in WebSockets

Action: Upgrade bokeh to 3.8.2 or later.

pip install bokeh==3.8.2

Affected

Fixed versions

Sources

• osv: PYSEC-2026-1223
• nvd: CVE-2026-21883
• https://github.com/bokeh/bokeh/security/advisories/GHSA-793v-589g-574v
• https://github.com/bokeh/bokeh/commit/cedd113b0e271b439dce768671685cf5f861812e
• https://aydinnyunus.github.io/2026/01/24/bokeh-websocket-hijacking-cve-2026-21883
• https://github.com/bokeh/bokeh
• https://pypi.org/project/bokeh
• https://github.com/advisories/GHSA-793v-589g-574v

CVE-2026-21883 · published 2026-07-07T16:03:16.722803Z · modified 2026-07-07T17:47:32.650537140Z · JSON