CVE-2014-3137: Bottle Content-Type Limitation Bypass

bottle Updated 02 Oct 2025

Summary

17/05/2022

Disclosed on

CVE-2014-3137

CVE

Yes i

Fix available

High

Severity

9.8

CVSS Score

CVE-2014-3137: Bottle does not properly limit content-types. Affects bottle across 3 version ranges.

>= 0.10.0, < 0.10.12 >= 0.11.0, < 0.11.7 >= 0.12.0, < 0.12.6

Fixed in 0.10.12, 0.11.7 or 0.12.6, depending on the release line you run. How to fix ↓

Also tracked for

python-bottle · Debian:11

The same CVE-2014-3137 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.

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Background

Bottle is a lightweight and fast Python web framework that allows developers to build web applications. It is known for its simplicity and ease of use. However, versions 0.10.x before 0.10.12, 0.11.x before 0.11.7, and 0.12.x before 0.12.6 of Bottle have a vulnerability that allows remote attackers to bypass access restrictions. This vulnerability arises from the improper limitation of content types in the framework.

Vulnerability Detail

The vulnerability in Bottle arises from the improper limitation of content types. Attackers can exploit this vulnerability by sending a request with an accepted Content-Type followed by a ; (semi-colon) and a Content-Type that would not be accepted. This allows them to bypass intended access restrictions. An attacker can leverage this vulnerability to execute arbitrary code. The vulnerability has been demonstrated in YouCompleteMe.

How To Fix

Fixed versions by release line

The minimum fixed version depends on the release line you run.

>= 0.10.0, < 0.10.12 0.10.12
```
pip install --upgrade "bottle==0.10.12"
```
>= 0.11.0, < 0.11.7 0.11.7
```
pip install --upgrade "bottle==0.11.7"
```
>= 0.12.0, < 0.12.6 0.12.6
```
pip install --upgrade "bottle==0.12.6"
```

Tip — Not sure which release line you're on? Vulert can find the fix for the version you are using. Scan free →

Workaround

There is no known workaround for this vulnerability. It is essential to upgrade to the fixed version of Bottle to mitigate the risk.

Conclusion

The vulnerability in Bottle allows remote attackers to bypass access restrictions and execute arbitrary code. It is crucial to upgrade to the fixed version of Bottle to mitigate the risk. For further support on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for bottle →

References

Related vulnerabilities

Recent vulnerabilities recorded for bottle.

View all bottle vulnerabilities →

How To Fix

Fixed versions by release line

The minimum fixed version depends on the release line you run.

>= 0.10.0, < 0.10.12 0.10.12
```
pip install --upgrade "bottle==0.10.12"
```
>= 0.11.0, < 0.11.7 0.11.7
```
pip install --upgrade "bottle==0.11.7"
```
>= 0.12.0, < 0.12.6 0.12.6
```
pip install --upgrade "bottle==0.12.6"
```