CVE-2016-6286

Name: CVE-2016-6286
Creator: NVD / NIST
Published: 2017-01-10T15:59:00.313+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.48%

Last modified Jun 17, 2026

CVE-2016-6286 is a vulnerability of currently unknown severity. The "spiffy-cgi-handlers" egg would convert a nonexistent "Proxy" header to the HTTP_PROXY environment variable, which would allow attackers to direct CGI programs which use this environment variable to use an attacker-specified HTTP proxy server (also known as a "httpoxy" attack). This affects all versions of spiffy-cgi-handlers before 0.5.. EPSS estimates a 1.48% chance of exploitation in the next 30 days.

Description

The "spiffy-cgi-handlers" egg would convert a nonexistent "Proxy" header to the HTTP_PROXY environment variable, which would allow attackers to direct CGI programs which use this environment variable to use an attacker-specified HTTP proxy server (also known as a "httpoxy" attack). This affects all versions of spiffy-cgi-handlers before 0.5.

Metrics

EPSS Probability

1.48%

70.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-19

Affected Software

Vendor	Product	Versions
Call-Cc	Http-Client	<= 0.4.2

References

http://lists.gnu.org/archive/html/chicken-announce/2016-07/msg00000.htmlMitigation, Third Party Advisory
http://www.securityfocus.com/bid/92105Third Party Advisory, VDB Entry
http://lists.gnu.org/archive/html/chicken-announce/2016-07/msg00000.htmlMitigation, Third Party Advisory
http://www.securityfocus.com/bid/92105Third Party Advisory, VDB Entry

Timeline

Published: Jan 10, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-6286?

How severe is CVE-2016-6286?

Severity scoring for CVE-2016-6286 is pending analysis. The EPSS model estimates a 1.48% probability of exploitation in the next 30 days.

How do I fix CVE-2016-6286?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-6286?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST