CVE-2015-5143

highpriority · track · 34EPSS 0.072 · 94 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

7.22% (94th) EPSS

CVSS 7.8 · high

Is it mine?

65 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedpython-django-0:1.6.11-2.el7ost.noarch as a component of Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/site/articles/11258
https://access.redhat.com/errata/RHSA-2015:1678
Fixedpython-django-0:1.6.11-2.el7ost.src as a component of Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/site/articles/11258
https://access.redhat.com/errata/RHSA-2015:1678
Fixedpython-django-bash-completion-0:1.6.11-2.el7ost.noarch as a component of Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/site/articles/11258
https://access.redhat.com/errata/RHSA-2015:1678
Fixedpython-django-doc-0:1.6.11-2.el7ost.noarch as a component of Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/site/articles/11258
https://access.redhat.com/errata/RHSA-2015:1678
Fixedpython-django-0:1.6.11-1.el6ost.noarch as a component of Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2015:1686
Fixedpython-django-0:1.6.11-1.el6ost.src as a component of Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2015:1686
Fixedpython-django-0:1.6.11-2.el7ost.noarch as a component of Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2015:1686
Fixedpython-django-0:1.6.11-2.el7ost.src as a component of Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2015:1686
Fixedpython-django-bash-completion-0:1.6.11-1.el6ost.noarch as a component of Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2015:1686
Fixedpython-django-bash-completion-0:1.6.11-2.el7ost.noarch as a component of Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2015:1686
Fixedpython-django-doc-0:1.6.11-1.el6ost.noarch as a component of Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2015:1686
Fixedpython-django-doc-0:1.6.11-2.el7ost.noarch as a component of Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7redhat_csaf
Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2015:1686

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.8

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 10 · impact 6.9

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Csecondary · FSTEC (BDU) RU

v2.06.6mediumAV:N/AC:L/Au:N/C:N/I:N/A:C/E:Usecondary · CVSS-BT (t0sche)

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Psecondary · Red Hat Product Security US

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-399USprimaryCWE-399USCWE-400USCWE-770US

affected products (65)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Django Software Foundation Django≤ 1.4.21fstec_bduRU
Django Software Foundation Django1.5.0 → 1.6.9fstec_bduRU
Django Software Foundation Django1.7.0 → 1.7.9fstec_bduRU
Django Software Foundation Django1.8.0 → 1.8.3fstec_bduRU
canonical ubuntu linux= 12.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 14.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 15.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 15.10nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
debian debian linux= 7.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 8.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
djangoproject django= 1.4.20nvdUScpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
djangoproject django= 1.5nvdUScpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
djangoproject django= 1.5.1nvdUScpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
djangoproject django= 1.5.10nvdUScpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
djangoproject django= 1.5.11nvdUScpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
djangoproject django= 1.5.12nvdUScpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
djangoproject django= 1.5.2nvdUScpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
djangoproject django= 1.5.3nvdUScpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
djangoproject django= 1.5.4nvdUScpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*

showing 20 of 65

advisories (4)

Vendor and ecosystem advisories describing this.

RHSA-2015:1678Red Hat Security Advisory: python-django security update2015-08-24csaf · redhat_csafUS
Updated python-django packages that fix a security issue are now available for Red Hat Enterprise Linux OpenStack Platform 6. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
RHSA-2015:1686Red Hat Security Advisory: python-django security update2015-08-25csaf · redhat_csafUS
Updated python-django packages that fix one security issue are now available for Red Hat Enterprise Linux OpenStack Platform 5. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
GHSA-h582-2pch-3xv3Django Denial-of-service by filling session store2019-07-05ghsa · osvUS
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.
PYSEC-2015-202015-07-14vendor · osvUS
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.

also known as (7)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv nvd redhat_csaf NVD CVE.org MITRE

published 2015-07-14modified 2026-06-17

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+3721 more

references (28)

External citations — patches, advisories, analysis.

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