CVE-2011-4211

Exp

The FakeFile implementation in the sandbox environment in the Google App Engine Python SDK before 1.5.4 does not properly control the opening of files, which allows local users to bypass intended access restrictions and create arbitrary files via ALLOWED_MODES and ALLOWED_DIRS changes within the code parameter to _ah/admin/interactive/execute, a different vulnerability than CVE-2011-1364.

Published: 2011-10-30 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-4211 is rated Exploit Available (50/100): CVSS High severity, with low exploitation likelihood (EPSS 0.04%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2011-4211

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2011-4211

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2023-03-07 0.95% 0.04% -0.91%
2 2022-02-04 — 0.95% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-4211

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2011-4211

Affected software / configurations for CVE-2011-4211

Vendor Product Version Raw CPE
google app_engine_python_sdk <= 1.5.3 cpe:2.3:a:google:app_engine_python_sdk:*:*:*:*:*:*:*:*
google app_engine_python_sdk 1.0.1 cpe:2.3:a:google:app_engine_python_sdk:1.0.1:*:*:*:*:*:*:*
google app_engine_python_sdk 1.0.2 cpe:2.3:a:google:app_engine_python_sdk:1.0.2:*:*:*:*:*:*:*
google app_engine_python_sdk 1.1.0 cpe:2.3:a:google:app_engine_python_sdk:1.1.0:*:*:*:*:*:*:*
google app_engine_python_sdk 1.1.1 cpe:2.3:a:google:app_engine_python_sdk:1.1.1:*:*:*:*:*:*:*
google app_engine_python_sdk 1.1.2 cpe:2.3:a:google:app_engine_python_sdk:1.1.2:*:*:*:*:*:*:*
google app_engine_python_sdk 1.1.3 cpe:2.3:a:google:app_engine_python_sdk:1.1.3:*:*:*:*:*:*:*
google app_engine_python_sdk 1.1.4 cpe:2.3:a:google:app_engine_python_sdk:1.1.4:*:*:*:*:*:*:*
google app_engine_python_sdk 1.1.5 cpe:2.3:a:google:app_engine_python_sdk:1.1.5:*:*:*:*:*:*:*
google app_engine_python_sdk 1.1.6 cpe:2.3:a:google:app_engine_python_sdk:1.1.6:*:*:*:*:*:*:*
google app_engine_python_sdk 1.1.7 cpe:2.3:a:google:app_engine_python_sdk:1.1.7:*:*:*:*:*:*:*
google app_engine_python_sdk 1.1.8 cpe:2.3:a:google:app_engine_python_sdk:1.1.8:*:*:*:*:*:*:*
google app_engine_python_sdk 1.1.9 cpe:2.3:a:google:app_engine_python_sdk:1.1.9:*:*:*:*:*:*:*
google app_engine_python_sdk 1.2.0 cpe:2.3:a:google:app_engine_python_sdk:1.2.0:*:*:*:*:*:*:*
google app_engine_python_sdk 1.2.1 cpe:2.3:a:google:app_engine_python_sdk:1.2.1:*:*:*:*:*:*:*
google app_engine_python_sdk 1.2.2 cpe:2.3:a:google:app_engine_python_sdk:1.2.2:*:*:*:*:*:*:*
google app_engine_python_sdk 1.2.3 cpe:2.3:a:google:app_engine_python_sdk:1.2.3:*:*:*:*:*:*:*
google app_engine_python_sdk 1.2.4 cpe:2.3:a:google:app_engine_python_sdk:1.2.4:*:*:*:*:*:*:*
google app_engine_python_sdk 1.2.5 cpe:2.3:a:google:app_engine_python_sdk:1.2.5:*:*:*:*:*:*:*
google app_engine_python_sdk 1.2.6 cpe:2.3:a:google:app_engine_python_sdk:1.2.6:*:*:*:*:*:*:*
google app_engine_python_sdk 1.2.7 cpe:2.3:a:google:app_engine_python_sdk:1.2.7:*:*:*:*:*:*:*
google app_engine_python_sdk 1.3.0 cpe:2.3:a:google:app_engine_python_sdk:1.3.0:*:*:*:*:*:*:*
google app_engine_python_sdk 1.3.1 cpe:2.3:a:google:app_engine_python_sdk:1.3.1:*:*:*:*:*:*:*
google app_engine_python_sdk 1.3.2 cpe:2.3:a:google:app_engine_python_sdk:1.3.2:*:*:*:*:*:*:*
google app_engine_python_sdk 1.3.3 cpe:2.3:a:google:app_engine_python_sdk:1.3.3:*:*:*:*:*:*:*
google app_engine_python_sdk 1.3.4 cpe:2.3:a:google:app_engine_python_sdk:1.3.4:*:*:*:*:*:*:*
google app_engine_python_sdk 1.3.5 cpe:2.3:a:google:app_engine_python_sdk:1.3.5:*:*:*:*:*:*:*
google app_engine_python_sdk 1.3.6 cpe:2.3:a:google:app_engine_python_sdk:1.3.6:*:*:*:*:*:*:*
google app_engine_python_sdk 1.3.7 cpe:2.3:a:google:app_engine_python_sdk:1.3.7:*:*:*:*:*:*:*
google app_engine_python_sdk 1.3.8 cpe:2.3:a:google:app_engine_python_sdk:1.3.8:*:*:*:*:*:*:*
google app_engine_python_sdk 1.4.0 cpe:2.3:a:google:app_engine_python_sdk:1.4.0:*:*:*:*:*:*:*
google app_engine_python_sdk 1.4.1 cpe:2.3:a:google:app_engine_python_sdk:1.4.1:*:*:*:*:*:*:*
google app_engine_python_sdk 1.4.2 cpe:2.3:a:google:app_engine_python_sdk:1.4.2:*:*:*:*:*:*:*
google app_engine_python_sdk 1.4.3 cpe:2.3:a:google:app_engine_python_sdk:1.4.3:*:*:*:*:*:*:*
google app_engine_python_sdk 1.5.0 cpe:2.3:a:google:app_engine_python_sdk:1.5.0:*:*:*:*:*:*:*
google app_engine_python_sdk 1.5.1 cpe:2.3:a:google:app_engine_python_sdk:1.5.1:*:*:*:*:*:*:*
google app_engine_python_sdk 1.5.2 cpe:2.3:a:google:app_engine_python_sdk:1.5.2:*:*:*:*:*:*:*

References for CVE-2011-4211

cvelogic Threat Intelligence