open-computer-use through commit 610bac8 contains a stored cross-site scripting vulnerability in Logger.write_log_file in os_computer_use/logging.py, which writes transcript text into log.html without HTML escaping. Attackers controlling sandbox content, such as web pages or files appearing in run_command output, can inject script that runs when operators open the log, exfiltrating transcript contents.
https://hackmd.io/@haind03/e2b-open-computer-use-html-log-injection
Published: 2026-10-11
Updated: 2026-10-11
Base Score: 4
Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N
Severity: Medium
Base Score: 4.2
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Severity: Medium
Base Score: 2.3
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Severity: Low