CRLF injection in httplib2 library for Python

Published: 2020-05-26
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-11078
Exploitation vector Network
Public exploit N/A
Vulnerable software
Other software / Other software solutions

Vendor httplib2

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) CRLF injection

EUVDB-ID: #VU28245

Risk: Low


CVE-ID: CVE-2020-11078

CWE-ID: CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')

Exploit availability: No


The vulnerability allows a remote attacker to perform CRLF injection attacks.

The vulnerability exists due to insufficient filtration of user-supplied data. A remote attacker controlling unescaped part of uri for "httplib2.Http.request()" can change request headers and body, send additional hidden requests to same server.


Install updates from vendor's website.

Vulnerable software versions

httplib2: 0.9 - 0.17.4

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?