CVE-2015-5143

NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 7%CVSS: —Exploit: NoneExposed: 0

A fix is available — apply it.

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.

CVSS v3
—
EG Score
0.0(none)
EPSS
93.7%
KEV
Not listed

Published

July 14, 2015

Last Modified

May 6, 2026

References (24)

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntupython-django (1.3.1-4ubuntu1.17) @ precise2026-05-23ubuntu
redhatpython-django-0:1.6.11-2.el7ost2015-08-25redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
django1.0.1 ... 1.8.2 (83 versions)1.8.3—

All Vendor Advisories

(3)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 11× in last 7d / 41× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 21:58 UTCEG score recompute
  2. 2026-07-22 14:04 UTCEPSS rescore
  3. 2026-07-21 15:21 UTCEPSS rescore
  4. 2026-07-21 15:21 UTCEPSS rescore
  5. 2026-07-20 17:03 UTCEPSS rescore
  6. 2026-07-19 14:27 UTCEPSS rescore
  7. 2026-07-19 14:27 UTCEPSS rescore
  8. 2026-07-19 02:26 UTCEPSS rescore
  9. 2026-07-19 02:26 UTCEPSS rescore
  10. 2026-07-18 10:00 UTCEPSS rescore
  11. 2026-07-16 16:59 UTCEPSS rescore
  12. 2026-07-15 16:54 UTCEPSS rescore
  13. 2026-07-15 16:54 UTCEPSS rescore
  14. 2026-07-15 01:56 UTCEPSS rescore
  15. 2026-07-13 22:26 UTCEPSS rescore
  16. 2026-07-13 22:26 UTCEPSS rescore
  17. 2026-07-12 16:37 UTCOSV refresh
  18. 2026-07-12 05:42 UTCEPSS rescore
  19. 2026-07-11 08:23 UTCEPSS rescore
  20. 2026-07-09 19:05 UTCEPSS rescore
  21. 2026-07-09 19:05 UTCEPSS rescore
  22. 2026-07-08 15:10 UTCEPSS rescore
  23. 2026-07-07 13:42 UTCEPSS rescore
  24. 2026-07-07 13:42 UTCEPSS rescore
  25. 2026-07-06 16:24 UTCEPSS rescore
Show 67 more
  1. 2026-07-06 02:20 UTCEPSS rescore
  2. 2026-07-05 02:26 UTCEPSS rescore
  3. 2026-07-04 06:28 UTCEPSS rescore
  4. 2026-07-01 15:02 UTCEPSS rescore
  5. 2026-06-30 23:19 UTCEPSS rescore
  6. 2026-06-30 23:19 UTCEPSS rescore
  7. 2026-06-29 14:03 UTCEPSS rescore
  8. 2026-06-29 14:03 UTCEPSS rescore
  9. 2026-06-28 04:53 UTCEPSS rescore
  10. 2026-06-27 03:05 UTCEPSS rescore
  11. 2026-06-25 13:47 UTCEPSS rescore
  12. 2026-06-25 13:47 UTCEPSS rescore
  13. 2026-06-24 14:02 UTCEPSS rescore
  14. 2026-06-24 14:02 UTCEPSS rescore
  15. 2026-06-23 22:29 UTCOSV refresh
  16. 2026-06-23 21:30 UTCEPSS rescore
  17. 2026-06-19 19:23 UTCEPSS rescore
  18. 2026-06-19 19:23 UTCEPSS rescore
  19. 2026-06-18 17:50 UTCEPSS rescore
  20. 2026-06-17 17:50 UTCEPSS rescore
  21. 2026-06-17 17:49 UTCEPSS rescore
  22. 2026-06-16 17:50 UTCEPSS rescore
  23. 2026-06-16 17:50 UTCEPSS rescore
  24. 2026-06-15 17:45 UTCEPSS rescore
  25. 2026-06-14 23:14 UTCEPSS rescore
  26. 2026-06-13 22:57 UTCEPSS rescore
  27. 2026-06-12 23:09 UTCEPSS rescore
  28. 2026-06-12 23:09 UTCEPSS rescore
  29. 2026-06-11 13:57 UTCEPSS rescore
  30. 2026-06-11 13:57 UTCEPSS rescore
  31. 2026-06-10 22:15 UTCEPSS rescore
  32. 2026-06-10 13:18 UTCEPSS rescore
  33. 2026-06-08 14:14 UTCEPSS rescore
  34. 2026-06-07 15:22 UTCEPSS rescore
  35. 2026-06-07 06:23 UTCOSV refresh
  36. 2026-06-06 13:45 UTCEPSS rescore
  37. 2026-06-05 22:44 UTCEPSS rescore
  38. 2026-06-05 06:08 UTCEPSS rescore
  39. 2026-06-05 06:08 UTCEPSS rescore
  40. 2026-06-04 13:10 UTCEPSS rescore
  41. 2026-06-04 13:10 UTCEPSS rescore
  42. 2026-06-02 20:10 UTCEPSS rescore
  43. 2026-06-01 13:49 UTCEPSS rescore
  44. 2026-06-01 13:49 UTCEPSS rescore
  45. 2026-05-31 22:28 UTCEPSS rescore
  46. 2026-05-31 22:28 UTCEPSS rescore
  47. 2026-05-31 00:14 UTCEPSS rescore
  48. 2026-05-29 13:41 UTCEPSS rescore
  49. 2026-05-28 13:42 UTCEPSS rescore
  50. 2026-05-28 13:42 UTCEPSS rescore
  51. 2026-05-27 13:38 UTCEPSS rescore
  52. 2026-05-27 13:38 UTCEPSS rescore
  53. 2026-05-26 13:41 UTCEPSS rescore
  54. 2026-05-26 07:16 UTCEPSS rescore
  55. 2026-05-26 07:16 UTCEPSS rescore
  56. 2026-05-24 16:43 UTCEPSS rescore
  57. 2026-05-23 00:39 UTCEG score recompute
  58. 2026-05-23 00:39 UTCVendor advisory
  59. 2026-05-22 21:15 UTCEPSS rescore
  60. 2026-05-21 22:40 UTCEPSS rescore
  61. 2026-05-20 22:37 UTCEPSS rescore
  62. 2026-05-20 22:37 UTCEPSS rescore
  63. 2026-05-20 11:21 UTCEPSS rescore
  64. 2026-05-20 11:21 UTCEPSS rescore
  65. 2026-05-20 11:21 UTCEPSS rescore
  66. 2026-05-18 21:30 UTCEPSS rescore
  67. 2026-05-18 21:30 UTCEPSS rescore

Frequently asked(4)

What is CVE-2015-5143?
CVE-2015-5143 is a none vulnerability published on July 14, 2015. 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.
When was CVE-2015-5143 disclosed?
CVE-2015-5143 was first published in the National Vulnerability Database on July 14, 2015, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2015-5143 actively exploited?
CVE-2015-5143 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 93.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2015-5143?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-5143, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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