CVE-2026-48779

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.8%, top 45% 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: epss, secondary
Elevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.9%CVSS: 7.5Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to (but not including) 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally small fragments and data chunks, with modest network traffic, to force the remote peer into allocating and holding structural wrappers that consume far more memory than the default documented message-size limit, leading to process termination due to OOM. This issue has been fixed in versions 5.2.5, 6.2.4, 7.5.11, and 8.21.0.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
65
EG Risk 65/100

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%
Exploitation40% × 40%
Automatability100% × 15%
EPSS PROB
0.9%
EPSS %ILE
59th
KEV
Not listed

Published

June 15, 2026

Last Modified

September 11, 2026

Advisory Details (5)

Auto-updated Jun 17, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github.
github Patch Available🟡 PoC Available

Memory exhaustion DoS from tiny fragments and data chunks · Advisory · websockets/ws · GitHub

https://github.com/websockets/ws/security/advisories/GHSA-96hv-2xvq-fx4p
github_commit Patch Available

commit fd36cd864fcd (websockets/ws)

Patch available: websockets/ws 7.5.11 (contains commit fd36cd864fcd)

https://github.com/websockets/ws/commit/fd36cd864fcdf62a08273a99e19a7d975401fee8
github_commit Patch Available

commit bca91adf1567 (websockets/ws)

Patch available: websockets/ws 8.21.0 (contains commit bca91adf1567)

https://github.com/websockets/ws/commit/bca91adf15677e47dbe4f959653452727be28b94
github_commit Patch Available

commit b5372ac67bb9 (websockets/ws)

Patch available: websockets/ws 5.2.5 (contains commit b5372ac67bb9)

https://github.com/websockets/ws/commit/b5372ac67bb97a773727b8e9f5035a8123556d53
github_commit Patch Available

commit 86d3e8a5fb02 (websockets/ws)

Patch available: websockets/ws 6.2.4 (contains commit 86d3e8a5fb02)

https://github.com/websockets/ws/commit/86d3e8a5fb0246ed373860c5fbb0de88824a27f7

Vendor Advisories for CVE-2026-48779(20)

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

Patch Availability(25)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatws2026-09-10redhat
redhatrhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9:17878015272026-09-08redhat
redhatrhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9:17871213872026-08-27redhat
redhatrh-podman-desktop-0:1.1.2-1.el10_22026-08-20redhat
redhatodf4/rook-ceph-rhel9-operator:17866295482026-08-19redhat
redhatodf4/rook-ceph-rhel9-operator:17867031432026-08-18redhat
redhatodf4/rook-ceph-rhel9-operator:17867068802026-08-18redhat
redhatcryostat/cryostat-openshift-console-plugin-rhel9:4.2.0-132026-07-29redhat
redhatodf4/rook-ceph-rhel9-operator:17836775332026-07-20redhat
redhatrhmtc/openshift-migration-ui-rhel8:17836905322026-07-20redhat
redhatodf4/rook-ceph-rhel9-operator:17836853752026-07-20redhat
redhatodf4/rook-ceph-rhel9-operator:17836692192026-07-16redhat
redhatrhtas/rekor-search-ui-rhel9:17833271852026-07-09redhat
redhatdevspaces/dashboard-rhel9:17824987922026-07-08redhat
redhatrhdh/rhdh-hub-rhel9:17834481842026-07-08redhat
redhatcluster-observability-operator/troubleshooting-panel-console-plugin-rhel9:17828394942026-07-01redhat
redhatrhdh/rhdh-hub-rhel9:17827612442026-06-30redhat
redhatopenshift-service-mesh/kiali-rhel9:17822015372026-06-29redhat
redhatopenshift-service-mesh/kiali-rhel9:17822018332026-06-29redhat
redhatopenshift-service-mesh/kiali-rhel8:17822875802026-06-29redhat
redhatopenshift-service-mesh/kiali-rhel9:17822018122026-06-29redhat
redhatopenshift-service-mesh/kiali-rhel9:17822014662026-06-29redhat
redhatdiscovery/discovery-ui-rhel9:17821669522026-06-24redhat
redhatdotnet9-0-main-9.0.118-1.hum12026-06-19redhat
redhatdotnet10-0-main-10.0.109-1.hum12026-06-17redhat

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

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
node-ws7.4.2+~cs18.0.8-2 ... 8.8.1+~cs13.7.3-1 (17 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
node-ws8.11.0+~cs13.7.3-1 ... 8.21.3+~cs14.19.1-1 (10 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
node-ws8.18.1+~cs14.18.2-1 ... 8.21.3+~cs14.19.1-1 (6 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
node-ws8.18.1+~cs14.18.2-1, 8.19.0+~cs14.19.1-1, 8.20.1+~cs14.19.1-1
  • every version up to 8.21.0+~cs14.19.1-1: fixed in 8.21.0+~cs14.19.1-1
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
ws—
  • 1.1.0 up to 5.2.5: fixed in 5.2.5
  • 6.0.0 up to 6.2.4: fixed in 6.2.4
  • 7.0.0 up to 7.5.11: fixed in 7.5.11
  • 8.0.0 up to 8.21.0: fixed in 8.21.0
—

Weakness Classification(3)

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

Additional Vendor Advisories

(9)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 6× 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 298 total refreshes for this CVE.

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

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

Frequently asked(5)

What is CVE-2026-48779?
CVE-2026-48779 is a high vulnerability published on June 15, 2026. ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to (but not including) 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally…
When was CVE-2026-48779 disclosed?
CVE-2026-48779 was first published on June 15, 2026, with the most recent update on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48779 actively exploited?
CVE-2026-48779 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% probability of exploitation in the next 30 days (59th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-48779?
CVE-2026-48779 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-48779?
A fix for CVE-2026-48779 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-48779 are linked in the Vendor Advisories panel on this page.

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