Stored cross-site scripting in open-computer-use session log
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
open-computer-use through commit 610bac8 contains a stored cross-site scripting flaw. Logger.write_log_file in os_computer_use/logging.py writes transcript text into log.html without HTML escaping (CWE-79). An attacker who controls sandbox content, such as web pages or files shown in run_command output, can inject script that runs when an operator opens the log and exfiltrates transcript contents.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
No affected products listed by the sources yet.
Remediation
The sources list no fixed version for open-computer-use.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Timeline
- 2026-10-11 Threatist record created from CVE-2026-108722
- 2026-10-11 Alias added: GHSA-jr77-j87x-vf2g
- 2026-10-13 CISA SSVC decision points changed
- 2026-10-13 Priority changed: LOW → MEDIUM
References
Other 3
- https://github.com/e2b-dev/open-computer-use/blob/610bac85d242b2fdf43fbe36bce2348658a2d4c9/os_computer_use/logging.py#L60-L82
- https://github.com/e2b-dev/open-computer-use/blob/610bac85d242b2fdf43fbe36bce2348658a2d4c9/os_computer_use/sandbox_agent.py#L25-L35
- https://github.com/e2b-dev/open-computer-use
Sources
- CVE-2026-108722 · CVE Program
- CVE-2026-108722 · NVD
- FIRST EPSS
- GHSA-jr77-j87x-vf2g · GitHub Advisory Database · CC BY 4.0
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