CVE-2026-21379

HIGHPre-NVD 7.87.8
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-06. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Memory Corruption when allocating memory with sizes that exceed the maximum allowed value.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

July 6, 2026

Last Modified

July 7, 2026

Advisory Details (1)

Auto-updated Jul 7, 2026
No patch confirmed yet.

Vendor Advisories for CVE-2026-21379(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 70× 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 110 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-21379?
CVE-2026-21379 is a high vulnerability published on July 6, 2026. Memory Corruption when allocating memory with sizes that exceed the maximum allowed value.
When was CVE-2026-21379 disclosed?
CVE-2026-21379 was first published in the National Vulnerability Database on July 6, 2026, with the most recent update on July 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-21379 actively exploited?
CVE-2026-21379 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 98.9% of all scored CVEs.
What is the CVSS score of CVE-2026-21379?
CVE-2026-21379 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-21379?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21379, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-21379

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