HIGH
Django: possible DoS by filling session store
Published Jul 14, 2015
8.7
HIGHCVSS 4.0
EPSS 7.27%
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.
Affected products
No data.
Configuration 1
OR
- 1.4.20
- 1.5
- 1.5
- 1.5
- 1.5.1
- 1.5.2
- 1.5.3
- 1.5.4
- 1.5.5
- 1.5.6
- 1.5.7
- 1.5.8
- 1.5.9
- 1.5.10
- 1.5.11
- 1.5.12
- 1.6
- 1.6
- 1.6
- 1.6
- 1.6
- 1.6.1
- 1.6.2
- 1.6.3
- 1.6.4
- 1.6.5
- 1.6.6
- 1.6.7
- 1.6.8
- 1.6.9
- 1.6.10
- 1.7
- 1.7
- 1.7
- 1.7
- 1.7
- 1.7
- 1.7
- 1.7.1
- 1.7.2
- 1.7.3
- 1.7.4
- 1.7.5
- 1.7.6
- 1.7.7
- 1.7.8
- 1.7.9
- 1.8.0
- 1.8.1
- 1.8.2
Configuration 2
OR
- 7.0
- 8.0
Configuration 4
OR
- 12.04
- 14.04
- 15.04
- 15.10
No data.
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6
python-django-0:1.6.11-1.el6ost
Fixed · RHSA-2015:1686
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7
python-django-0:1.6.11-2.el7ost
Fixed · RHSA-2015:1686
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7
python-django-0:1.6.11-2.el7ost
Fixed · RHSA-2015:1678
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
python-django
Not affected
Red Hat Subscription Asset Manager
Django
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 | python-django-0:1.6.11-1.el6ost | Fixed | RHSA-2015:1686 |
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 | python-django-0:1.6.11-2.el7ost | Fixed | RHSA-2015:1686 |
| Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 | python-django-0:1.6.11-2.el7ost | Fixed | RHSA-2015:1678 |
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | python-django | Not affected | n/a |
| Red Hat Subscription Asset Manager | Django | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
8.7 HIGH GHSA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Attack Vector Network
Attack Complexity Low
Attack Requirements None
Privileges Required None
User Interaction None
Vulnerable System Confidentiality None
Vulnerable System Integrity None
Vulnerable System Availability High
Subsequent System Confidentiality None
Subsequent System Integrity None
Subsequent System Availability None
7.5 HIGH GHSA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
No CVSS v3.0 score for this CVE.
7.8 HIGH NVD
AV:N/AC:L/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
7.27% 0.07266
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.07266
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (39 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 7.27% (0.07266) | 94.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 7.27% (0.07266) | 93.53th | v5 (v2026.06.15) |
| Mar 4, 2026 | 15.81% (0.15813) | 94.60th | v4 (v2025.03.14) |
| Mar 1, 2026 | 4.80% (0.04798) | 89.34th | v4 (v2025.03.14) |
| Feb 4, 2026 | 15.81% (0.15813) | 94.55th | v4 (v2025.03.14) |
| Feb 1, 2026 | 4.80% (0.04798) | 89.26th | v4 (v2025.03.14) |
| Jan 4, 2026 | 15.81% (0.15813) | 94.52th | v4 (v2025.03.14) |
| Jan 1, 2026 | 4.80% (0.04798) | 89.21th | v4 (v2025.03.14) |
| Dec 4, 2025 | 15.81% (0.15813) | 94.47th | v4 (v2025.03.14) |
| Dec 1, 2025 | 4.80% (0.04798) | 89.13th | v4 (v2025.03.14) |
| Nov 4, 2025 | 15.81% (0.15813) | 94.45th | v4 (v2025.03.14) |
| Nov 1, 2025 | 4.80% (0.04798) | 89.04th | v4 (v2025.03.14) |
| Oct 4, 2025 | 15.81% (0.15813) | 94.48th | v4 (v2025.03.14) |
| Oct 1, 2025 | 4.80% (0.04798) | 89.07th | v4 (v2025.03.14) |
| Sep 4, 2025 | 15.81% (0.15813) | 94.49th | v4 (v2025.03.14) |
| Sep 1, 2025 | 4.80% (0.04798) | 89.13th | v4 (v2025.03.14) |
| Aug 5, 2025 | 15.81% (0.15813) | 94.45th | v4 (v2025.03.14) |
| Aug 1, 2025 | 4.80% (0.04798) | 89.15th | v4 (v2025.03.14) |
| Jul 4, 2025 | 15.81% (0.15813) | 94.43th | v4 (v2025.03.14) |
| Jul 1, 2025 | 4.80% (0.04798) | 89.06th | v4 (v2025.03.14) |
| Jun 4, 2025 | 15.81% (0.15813) | 94.38th | v4 (v2025.03.14) |
| Jun 1, 2025 | 4.80% (0.04798) | 89.00th | v4 (v2025.03.14) |
| May 4, 2025 | 15.66% (0.15661) | 94.29th | v4 (v2025.03.14) |
| May 1, 2025 | 4.87% (0.04869) | 89.00th | v4 (v2025.03.14) |
| Apr 14, 2025 | 15.66% (0.15661) | 94.16th | v4 (v2025.03.14) |
| Apr 13, 2025 | 4.87% (0.04869) | 88.61th | v4 (v2025.03.14) |
| Mar 31, 2025 | 15.66% (0.15661) | 94.14th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.87% (0.04869) | 88.55th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.94% (0.01938) | 72.47th | v4 (v2025.03.14) |
| Mar 22, 2025 | 15.66% (0.15661) | 94.19th | v4 (v2025.03.14) |
| Mar 21, 2025 | 4.87% (0.04869) | 88.65th | v4 (v2025.03.14) |
| Mar 17, 2025 | 15.66% (0.15661) | 94.20th | v4 (v2025.03.14) |
| Feb 23, 2025 | 11.64% (0.11644) | 95.36th | v3 (v2023.03.01) |
| Dec 17, 2024 | 15.01% (0.15013) | 95.81th | v3 (v2023.03.01) |
| May 6, 2023 | 13.53% (0.13527) | 94.73th | v3 (v2023.03.01) |
| Mar 7, 2023 | 11.96% (0.11962) | 94.40th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.17% (0.02172) | 80.77th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.17% (0.02172) | 78.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.17% (0.02172) | 57.73th | v2 (v2022.01.01) |
References (21)
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172084.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-updates/2015-10/msg00043.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2015-10/msg00046.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2015-1678.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-1686.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2015/dsa-3305 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html x_refsource_CONFIRMThird Party Advisory
- http://www.securityfocus.com/bid/75666 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1032820 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2671-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2015-5143 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1239010 Issue Tracking
- https://github.com/advisories/GHSA-h582-2pch-3xv3 Advisory
- https://github.com/django/django/commit/1828f4341ec53a8684112d24031b767eba557663
- https://github.com/django/django/commit/2e47f3e401c29bc2ba5ab794d483cb0820855fb9
- https://github.com/django/django/commit/66d12d1ababa8f062857ee5eb43276493720bf16
- https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2015-20.yaml
- https://nvd.nist.gov/vuln/detail/CVE-2015-5143
- https://security.gentoo.org/glsa/201510-06 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2015-5143
- https://www.djangoproject.com/weblog/2015/jul/08/security-releases x_refsource_CONFIRMPatchVendor Advisory
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jul 14, 2015
Updated Aug 6, 2024
Reserved Jun 29, 2015
Link CVE-2015-5143
CISA Vulnrichment
GHSA-H582-2PCH-3XV3 Updated n/a