XSS in E2b-Dev Open-Computer-Use
CVE-2026-108722
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published .
CVSS v3 metric
CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@haind03/e2b-open-computer-use-html-log-injection (third-party-advisory)
- github.com/e2b-dev/open-computer-use/blob/610bac85d242b2fdf43fbe36bce2348658a2d… (technical-description)
- github.com/e2b-dev/open-computer-use/blob/610bac85d242b2fdf43fbe36bce2348658a2d… (technical-description)
- github.com/e2b-dev/open-computer-use (product)
- www.vulncheck.com/advisories/open-computer-use-through-commit-610bac8-stored-xs… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-108722?
- CVE-2026-108722 is a medium-severity vulnerability in E2b-Dev Open-Computer-Use, classified under Cross-site Scripting. CVSS score: 4.2/10. Published 2026-10-11.
- How severe is CVE-2026-108722?
- Medium severity. CVSS v3 base score is 4.2 out of 10.