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Fencer Intel
high 7.5

CVE-2015-5144 json

Django Vulnerable to HTTP Response Splitting Attack

published 11y ago modified 4mo ago also GHSA-q5qw-4364-5hhm , PYSEC-2015-10 , EUVD-2015-0005

cvss
7.5
version 3.1, GitHub
cisa kev
Not listed
not in CISA's catalog
epss
3.2%
EPSS 3.2% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

Django before 1.4.21, 1.5.x through 1.6.x, 1.7.x before 1.7.9, and 1.8.x before 1.8.3 uses an incorrect regular expression, which allows remote attackers to inject arbitrary headers and conduct HTTP response splitting attacks via a newline character in an (1) email message to the EmailValidator, a (2) URL to the URLValidator, or unspecified vectors to the (3) validate_ipv4_address or (4) validate_slug validator.

Patch / fix

  • pypi django 1.4.21, 1.7.9, 1.8.3
  • python-django Debian 14, Debian 13, Debian 12 1.7.9-1

debian advisories DEBIAN-CVE-2015-5144

  • python-django Ubuntu 14.04 LTS 1.6.1-2ubuntu0.9

ubuntu advisories UBUNTU-CVE-2015-5144

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • python-Django Enterprise Storage 2 1.6.11-3.1
  • python-Django OpenStack Cloud 5 1.6.11-10.2
  • python-Django Enterprise Storage 1.0 1.6.11-8.1

suse advisories SUSE-SU-2016:0044-1SUSE-SU-2015:1810-1SUSE-SU-2015:1815-1

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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-2015-5144 updated cvss 4.3

Django: possible header injection due to validators accepting newlines in input

  • Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse) python-django Red Hat Enterprise Linux OpenStack Platform 6 (Juno) python-django Red Hat Subscription Asset Manager Django
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) python-django, python-django-bash-completion
    not affected: vulnerable code not present

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

3.17% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
pypi django
<1.4.21
>=1.5, <1.7.9
>=1.8a1, <1.8.3
>=1.8, <1.8.3
1.4.21
1.7.9
1.8.3

Classification

Weakness
  • CWE-20 Improper Input Validation
Technology feeds

References

Sources

Fencer Intel 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.