CVE-2018-1000164 is a high-severity vulnerability in Gunicorn versions prior to 19.5.0, specifically impacting the "process_headers" function in "gunicorn/http/wsgi.py". This flaw, categorized as CWE-93 (Improper Neutralization of CRLF Sequences in HTTP Headers), allows an unauthenticated attacker to inject arbitrary HTTP headers into server responses. The CVSS v3 score of 7.5 indicates a high impact on integrity, with no confidentiality or availability impact. While there is no evidence of active exploitation, public exploit code, or significant community discussion, organizations using affected Gunicorn versions should upgrade to 19.5.0 or later to mitigate this risk.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
19.4.5CPE matchmatch criteria | cpe:2.3:a:gunicorn:gunicorn:19.4.5:*:*:*:*:*:*:* | ||
7.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Gunicorn contains Improper Neutralization of CRLF sequences in HTTP headers
Jul 12, 2018python-gunicorn: Improper neutralization of CRLF Sequences http/wsgi.py:process_headers() can allow an attacker to cause a server to return arbitrary HTTP headers
Mar 17, 2016