Ansible Tower as shipped with Red Hat CloudForms Management Engine 5 is vulnerable to CRLF Injection.

published 2018-08-22 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-16544

cvss: 5.2; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits: 0; none known

Ansible Tower as shipped with Red Hat CloudForms Management Engine 5 is vulnerable to CRLF Injection. It was found that X-Forwarded-For header allows internal servers to deploy other systems (using callback).

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-7528 updated 2026-06-30 cvss 5.2

Tower: X-Forwarded-For header allows internal servers to deploy other systems (using callback)

Red Hat CloudForms Management Engine 5 cfme
under investigation

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.60% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	5.2	CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
NVD	3.0	6.5	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD	2.0	3.3	AV:A/AC:L/Au:N/C:N/I:P/A:N

Affected products

Red Hat Ansible Tower

Classification

Weakness

CWE-113 Improper Neutralization of CRLF Sequences in HTTP Headers
CWE-93 Improper Neutralization of CRLF Sequences

References

bugzilla.redhat.com /show_bug.cgi?id=CVE-2017-7528
issue-tracking, vendor-advisory
securityfocus.com /bid/105143
vdb-entry, third-party-advisory

Sources

CVE List CVE-2017-7528
NVD CVE-2017-7528

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary