Vulnerability · Published Oct 11, 2026 · Assigned by VulnCheck

CVE-2026-108722open-computer-use through commit 610bac8 Stored XSS via log.html Session Log

Medium 4.2

In plain English

A medium-severity cross-site scripting in open-computer-use from e2b-dev. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).

Severity (CVSS 3.1)4.2Medium

Exploit odds (30 days)0.3%top 77.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
e2b-dev	open-computer-use	0 – through 610bac85d242b2fdf43fbe36bce2348658a2d4c9

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

References

https://hackmd.io/@haind03/e2b-open-computer-use-html-log-injection third-party-advisory
https://github.com/e2b-dev/open-computer-use/blob/610bac85d242b2fdf43fbe36bce2348658a2d4c9/os_computer_use/logging.py#L60-L82 technical-description
https://github.com/e2b-dev/open-computer-use/blob/610bac85d242b2fdf43fbe36bce2348658a2d4c9/os_computer_use/sandbox_agent.py#L25-L35 technical-description
https://github.com/e2b-dev/open-computer-use product
VulnCheck Advisory: open-computer-use through commit 610bac8 Stored XSS via log.html Session Log third-party-advisory
https://hackmd.io/@haind03/cve-2026-108722-e2b-open-computer-use-html-log-injection exploit