CVE-2011-4211
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 2.0
- 7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 0.22% probability · 13th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- google/app engine python sdk
- Source
- cve@mitre.org
EPSS 0.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://blog.watchfire.com/files/googleappenginesdk.pdfExploit
- http://code.google.com/p/googleappengine/wiki/SdkReleaseNotesPatch
- http://www.securityfocus.com/bid/50464
- https://exchange.xforce.ibmcloud.com/vulnerabilities/71064
- http://blog.watchfire.com/files/googleappenginesdk.pdfExploit
- http://code.google.com/p/googleappengine/wiki/SdkReleaseNotesPatch
- http://www.securityfocus.com/bid/50464
- https://exchange.xforce.ibmcloud.com/vulnerabilities/71064
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.