CVE-2026-19024

HIGHPre-NVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (5th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 4 sources updated this weekElevated
8.2EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 8.2Exploit: Elevated riskExposed services: Not assessed

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

NULL pointer dereference in H5Pget_fill_value in HDF5 before 2.3.0 allows attackers to cause a denial of service via a dataset whose version 1 or 2 fill value message has the "defined" flag set together with a negative size field, which is not normalized to the library's "undefined" sentinel and reaches H5T_path_find with a NULL datatype.

CVSS v3
8.2
EG Score
8.2HIGHmedium confidence
EG Risk
53
EG Risk 53/100CISA SSVC

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
Severity82% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
5th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 5, 2026

Last Modified

August 31, 2026

Advisory Details (1)

Auto-updated Aug 5, 2026
No patch confirmed yet.
generic

h5dump: null pointer dereference in H5T__path_find_real when dumping XML fill value · Issue #6487 · HDFGroup/hdf5 · GitHub

https://github.com/HDFGroup/hdf5/issues/6487

Vendor Advisories for CVE-2026-19024(2)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
hdf51.10.10+repack-1 ... 2.1.0+repack-1~exp9 (83 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
hdf51.10.10+repack-1 ... 2.2.0+repack-5 (77 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
hdf51.14.5+repack-3 ... 2.2.0+repack-5 (46 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
hdf51.14.5+repack-3 ... 2.2.0+repack-5 (46 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 92× 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 201 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-19024?
CVE-2026-19024 is a high vulnerability published on August 5, 2026. NULL pointer dereference in H5Pgetfillvalue in HDF5 before 2.3.0 allows attackers to cause a denial of service via a dataset whose version 1 or 2 fill value message has the "defined" flag set together with a negative size field, which is not normalized to the library's "undefined" sentinel and…
When was CVE-2026-19024 disclosed?
CVE-2026-19024 was first published on August 5, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19024 actively exploited?
CVE-2026-19024 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-19024?
CVE-2026-19024 has a CVSS base score of 8.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-19024?
No fix for CVE-2026-19024 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-19024 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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