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
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 7.5Exploit: None knownExposed services: Not assessed

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
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
EPSS PROB
0.5%
EPSS %ILE
39th
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(16)

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 / EcosystemFix (by version range) / 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 rangeFix by version rangeDependents
node-undici7.15.0+dfsg+~cs3.2.0-1 ... 8.9.0+dfsg+~cs3.2.0-1 (16 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
node-undici7.15.0+dfsg+~cs3.2.0-1 ... 7.3.0+dfsg1+~cs24.12.11-2 (7 versions)
  • every version up to 7.24.5+dfsg+~cs3.2.0-1: fixed in 7.24.5+dfsg+~cs3.2.0-1
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
undici—
  • 6.0.0 up to 6.24.0: fixed in 6.24.0
  • 7.0.0 up to 7.24.0: fixed in 7.24.0
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 22× 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 143 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

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 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 0.5% probability of exploitation in the next 30 days (39th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-1528?
CVE-2026-1528 has a CVSS base score of 7.5 (the CNA's own assessment, by openjs; NVD's own analysis pending).
How do I remediate CVE-2026-1528?
A fix for CVE-2026-1528 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-1528 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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