CVE-2015-5143

high
Published 2015-07-14 · Modified 2023-11-08
CVSS v3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2
7.8
VIR risk
7.8

Description

The session backends in 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 allows remote attackers to cause a denial of service (session store consumption) via multiple requests with unique session keys.

Predictions

Exploit likelihood
30%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2015-5143

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://www.djangoproject.com/weblog/2015/jul/08/security-releases/

OS impact

OSVersionStatusFixed in
ubuntu ubuntu12.04affected
ubuntu ubuntu14.04affected
ubuntu ubuntu15.04affected
ubuntu ubuntu15.10affected
debian debian7.0affected
debian debian8.0affected
debian debianbookwormfixed1.7.9-1
debian debianbullseyefixed1.7.9-1
debian debianforkyfixed1.7.9-1
debian debiansidfixed1.7.9-1
debian debiantrixiefixed1.7.9-1

Package impact

EcosystemPackageVulnerableFixed
python PyPIdjango<1.4.211.4.21
python PyPIdjango>=1.5,<1.7.91.7.9
python PyPIdjango>=1.8,<1.8.31.8.3

Application impact

VendorProductVersionsFixed
djangoprojectdjango1.4.20
djangoprojectdjango1.5
djangoprojectdjango1.5.1
djangoprojectdjango1.5.2
djangoprojectdjango1.5.3
djangoprojectdjango1.5.4
djangoprojectdjango1.5.5
djangoprojectdjango1.5.6
djangoprojectdjango1.5.7
djangoprojectdjango1.5.8
djangoprojectdjango1.5.9
djangoprojectdjango1.5.10
djangoprojectdjango1.5.11
djangoprojectdjango1.5.12
djangoprojectdjango1.6
djangoprojectdjango1.6.1
djangoprojectdjango1.6.2
djangoprojectdjango1.6.3
djangoprojectdjango1.6.4
djangoprojectdjango1.6.5
djangoprojectdjango1.6.6
djangoprojectdjango1.6.7
djangoprojectdjango1.6.8
djangoprojectdjango1.6.9
djangoprojectdjango1.6.10
djangoprojectdjango1.7
djangoprojectdjango1.7.1
djangoprojectdjango1.7.2
djangoprojectdjango1.7.3
djangoprojectdjango1.7.4
djangoprojectdjango1.7.5
djangoprojectdjango1.7.6
djangoprojectdjango1.7.7
djangoprojectdjango1.7.8
djangoprojectdjango1.7.9
djangoprojectdjango1.8.0
djangoprojectdjango1.8.1
djangoprojectdjango1.8.2

References

CWEs

CWE-399

Verify integrity in audit chain (admin only). AS-IS.