CVE-2026-53878

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

Score 6.1 from GitHub Security Advisory published 2026-07-07. a secondary CVSS source baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

An issue was discovered in Django 6.0 before 6.0.7 and 5.2 before 5.2.16. DomainNameValidator does not prohibit newlines in domain names (unless used via a form field, since CharField strips newlines). If an application uses values with newlines in an HTTP response, header injection can occur. Django itself is unaffected because HttpResponse prohibits newlines in HTTP headers. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. Django would like to thank Bence Nagy for reporting this issue.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
28
EG Risk 28/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity61% × 45%
Exploitation0% × 40%
Automatability0% × 15%
EPSS PROB
0.3%
EPSS %ILE
23rd
KEV
Not listed

Published

July 7, 2026

Last Modified

July 9, 2026

Advisory Details (3)

Auto-updated Jul 7, 2026
Patch available.
generic

Django security releases issued: 6.0.7 and 5.2.16 | Weblog | Django

https://www.djangoproject.com/weblog/2026/jul/07/security-releases/
generic
https://groups.google.com/g/django-announce
generic

Archive of security issues | Django documentation | Django

https://docs.djangoproject.com/en/dev/releases/security/

Vendor Advisories for CVE-2026-53878(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(3 across 3 ecosystems)
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
python-django3:4.2.23-1 ... 3:6.1~rc1-1 (64 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
python-django3:4.2.23-1 ... 3:5.2~rc1-1 (44 versions)
  • every version up to 3:5.2.16-1: fixed in 3:5.2.16-1
—
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
django5.2 ... 6.0.6 (23 versions)
  • every version up to 5.2.16: fixed in 5.2.16
  • 6.0.0 up to 6.0.7: fixed in 6.0.7
  • 5.2 up to 5.2.16: fixed in 5.2.16
  • 6.0 up to 6.0.7: fixed in 6.0.7
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 30× 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.

Showing the most recent 100 of 149 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:12 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
  4. 2026-10-06 15:18 UTCEPSS rescore
  5. 2026-10-05 17:43 UTCEPSS rescore
  6. 2026-10-04 23:22 UTCEPSS rescore
  7. 2026-10-03 14:26 UTCEPSS rescore
  8. 2026-10-02 17:56 UTCEPSS rescore
  9. 2026-10-01 19:50 UTCEPSS rescore
  10. 2026-09-30 15:03 UTCEPSS rescore
  11. 2026-09-29 15:22 UTCEPSS rescore
  12. 2026-09-28 13:51 UTCEPSS rescore
  13. 2026-09-28 13:37 UTCEG score recompute
  14. 2026-09-27 13:48 UTCEPSS rescore
  15. 2026-09-26 15:59 UTCEPSS rescore
  16. 2026-09-24 14:04 UTCEPSS rescore
  17. 2026-09-23 17:54 UTCEPSS rescore
  18. 2026-09-23 06:18 UTCEG score recompute
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-18 19:28 UTCEPSS rescore
  21. 2026-09-18 05:50 UTCEG score recompute
  22. 2026-09-17 19:31 UTCEPSS rescore
  23. 2026-09-16 14:08 UTCEPSS rescore
  24. 2026-09-16 05:15 UTCEPSS rescore
  25. 2026-09-14 07:31 UTCEG score recompute
Show 75 more
  1. 2026-09-13 16:47 UTCEPSS rescore
  2. 2026-09-13 08:32 UTCEG score recompute
  3. 2026-09-12 03:43 UTCEG score recompute
  4. 2026-09-11 14:53 UTCEPSS rescore
  5. 2026-09-10 09:35 UTCEPSS rescore
  6. 2026-09-08 22:01 UTCEPSS rescore
  7. 2026-09-07 16:01 UTCEPSS rescore
  8. 2026-09-06 13:47 UTCEPSS rescore
  9. 2026-09-05 22:54 UTCEG score recompute
  10. 2026-09-04 05:06 UTCEPSS rescore
  11. 2026-09-02 14:12 UTCEPSS rescore
  12. 2026-09-01 13:54 UTCEPSS rescore
  13. 2026-09-01 04:40 UTCEPSS rescore
  14. 2026-08-30 19:17 UTCEPSS rescore
  15. 2026-08-30 07:43 UTCEG score recompute
  16. 2026-08-30 01:22 UTCEPSS rescore
  17. 2026-08-28 21:41 UTCEPSS rescore
  18. 2026-08-27 21:55 UTCEG score recompute
  19. 2026-08-27 14:25 UTCEPSS rescore
  20. 2026-08-26 14:46 UTCEPSS rescore
  21. 2026-08-26 13:00 UTCEG score recompute
  22. 2026-08-25 13:49 UTCEPSS rescore
  23. 2026-08-24 21:44 UTCEG score recompute
  24. 2026-08-23 22:19 UTCEG score recompute
  25. 2026-08-23 00:19 UTCEPSS rescore
  26. 2026-08-22 00:17 UTCEG score recompute
  27. 2026-08-21 23:49 UTCEPSS rescore
  28. 2026-08-20 02:16 UTCEG score recompute
  29. 2026-08-19 17:04 UTCEPSS rescore
  30. 2026-08-18 22:29 UTCEG score recompute
  31. 2026-08-18 13:48 UTCEPSS rescore
  32. 2026-08-17 22:35 UTCEG score recompute
  33. 2026-08-17 13:47 UTCEPSS rescore
  34. 2026-08-16 19:39 UTCEG score recompute
  35. 2026-08-16 14:56 UTCEPSS rescore
  36. 2026-08-16 02:14 UTCEPSS rescore
  37. 2026-08-15 19:38 UTCEG score recompute
  38. 2026-08-15 01:30 UTCEPSS rescore
  39. 2026-08-14 20:39 UTCEG score recompute
  40. 2026-08-13 22:00 UTCEPSS rescore
  41. 2026-08-12 22:39 UTCEG score recompute
  42. 2026-08-12 13:51 UTCEPSS rescore
  43. 2026-08-11 23:40 UTCEG score recompute
  44. 2026-08-11 00:41 UTCEG score recompute
  45. 2026-08-11 00:00 UTCEPSS rescore
  46. 2026-08-10 01:42 UTCEG score recompute
  47. 2026-08-09 13:46 UTCEPSS rescore
  48. 2026-08-09 02:42 UTCEG score recompute
  49. 2026-08-08 16:37 UTCEPSS rescore
  50. 2026-08-08 03:43 UTCEG score recompute
  51. 2026-08-07 04:44 UTCEG score recompute
  52. 2026-08-07 04:44 UTCGHSA enrichment
  53. 2026-08-06 13:47 UTCEPSS rescore
  54. 2026-08-06 05:43 UTCEG score recompute
  55. 2026-08-06 05:43 UTCGHSA enrichment
  56. 2026-08-05 19:17 UTCEPSS rescore
  57. 2026-08-05 06:44 UTCEG score recompute
  58. 2026-08-05 06:44 UTCGHSA enrichment
  59. 2026-08-04 15:10 UTCEPSS rescore
  60. 2026-08-04 10:39 UTCEPSS rescore
  61. 2026-08-04 05:29 UTCEG score recompute
  62. 2026-08-04 05:29 UTCGHSA enrichment
  63. 2026-08-03 10:36 UTCEPSS rescore
  64. 2026-08-03 06:29 UTCGHSA enrichment
  65. 2026-08-02 07:25 UTCEG score recompute
  66. 2026-08-02 07:25 UTCGHSA enrichment
  67. 2026-08-02 02:27 UTCEPSS rescore
  68. 2026-08-01 08:25 UTCEG score recompute
  69. 2026-08-01 08:25 UTCGHSA enrichment
  70. 2026-08-01 04:16 UTCEPSS rescore
  71. 2026-07-31 09:26 UTCEG score recompute
  72. 2026-07-31 09:26 UTCGHSA enrichment
  73. 2026-07-30 16:28 UTCEPSS rescore
  74. 2026-07-30 10:26 UTCEG score recompute
  75. 2026-07-30 10:26 UTCGHSA enrichment

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-53878?
CVE-2026-53878 is a medium vulnerability published on July 7, 2026. An issue was discovered in Django 6.0 before 6.0.7 and 5.2 before 5.2.16. DomainNameValidator does not prohibit newlines in domain names (unless used via a form field, since CharField strips newlines). If an application uses values with newlines in an HTTP response, header injection can occur.…
When was CVE-2026-53878 disclosed?
CVE-2026-53878 was first published on July 7, 2026, with the most recent update on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53878 actively exploited?
CVE-2026-53878 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (23rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-53878?
CVE-2026-53878 has a CVSS base score of 6.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-53878?
A fix for CVE-2026-53878 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-53878 are linked in the Vendor Advisories panel on this page.

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