CVE-2026-1528

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 59% of all CVEs by exploit prediction. 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: cna:openjs, epss
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

ImpactA server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends up in an invalid state, and throws a fatal TypeError that terminates the process.

Patches

Patched in the undici version v7.24.0 and v6.24.0. Users should upgrade to this version or later.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
41%
KEV
Not listed

Published

March 12, 2026

Last Modified

September 14, 2026

Advisory Details (9)

Auto-updated Jul 3, 2026
Patch available. Sources: github, redhat.
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:7080
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:5807
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:34342
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:21931
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:21772
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:17789
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:13826
github Patch Available

Malicious WebSocket 64-bit length overflows undici parser and crashes the client · Advisory · nodejs/undici · GitHub

https://github.com/nodejs/undici/security/advisories/GHSA-f269-vfmq-vjvj
generic

Security Advisories | OpenJS Foundation CVE Numbering Authority

https://cna.openjsf.org/security-advisories.html

Vendor Advisories for CVE-2026-1528(15)

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

Patch Availability(15)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatcluster-observability-operator/troubleshooting-panel-console-plugin-pf6-rhel9:17828399962026-07-01redhat
redhatopenshift-pipelines/pipelines-console-plugin-rhel9:17799102012026-05-29redhat
redhatdevspaces/code-rhel9:17798145922026-05-28redhat
redhatcryostat/cryostat-rhel9:4.2.0-92026-05-26redhat
redhatrhdh/rhdh-hub-rhel9:17779032622026-05-05redhat
redhatrhdh/rhdh-hub-rhel9:17767842862026-04-22redhat
redhatnodejs:22-9060020260409121057.rhel92026-04-14redhat
redhatnodejs24-1:24.14.1-2.el10_12026-04-13redhat
redhatnodejs:24-8100020260408131901.6d8804032026-04-13redhat
redhatnodejs:22-9070020260401095228.rhel92026-04-09redhat
redhatnodejs22-1:22.22.2-2.el10_02026-04-09redhat
redhatnodejs:24-9070020260402152654.rhel92026-04-09redhat
redhatnodejs:22-8100020260331102257.6d8804032026-04-08redhat
redhatnodejs22-1:22.22.2-1.el10_12026-04-08redhat
redhatrhoai/odh-dashboard-rhel8:17742821362026-03-25redhat

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

(3 across 3 ecosystems)
Debian:13(1)
PackageVulnerable rangeFixed inDependents
node-undici7.15.0+dfsg+~cs3.2.0-1 ... 8.9.0+dfsg+~cs3.2.0-1 (15 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
node-undici7.15.0+dfsg+~cs3.2.0-1 ... 7.3.0+dfsg1+~cs24.12.11-2 (7 versions)7.24.5+dfsg+~cs3.2.0-1—
npm(1)
PackageVulnerable rangeFixed inDependents
undici—7.24.0—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 38× 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 134 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-1528?
CVE-2026-1528 is a high vulnerability published on March 12, 2026. ImpactA server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends up in an invalid state, and throws a fatal TypeError that terminates the process. Patches Patched in the undici version v7.24.0 and v6.24.0.…
When was CVE-2026-1528 disclosed?
CVE-2026-1528 was first published in the National Vulnerability Database on March 12, 2026, with the most recent update on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-1528 actively exploited?
CVE-2026-1528 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 58.9% of all scored CVEs.
What is the CVSS score of CVE-2026-1528?
CVE-2026-1528 has a CVSS v4.0 base score of 7.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-1528?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-1528, 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

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