CVE-2026-48930

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.3% (24th percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 5.6 is lower than this score; a lower GitHub score revises it only when its advisory is newer than the CVE record's last change, and this advisory (published 2026-06-26) is not newer than that change (2026-10-25), so it does not.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this week

Also known asEUVD-2026-39614 (ENISA EUVD) · GHSA-g779-8rvr-37xx (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw in Node.js TLS hostname handling can cause Embedded-nul hostnames can lead to silent authority rebinding due to c-string truncation in resolver bindings. This vulnerability affects all supported release lines: Node.js 22, Node.js 24, and Node.js 26.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
44
EG Risk 44/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
24th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 26, 2026

Last Modified

October 25, 2026

Advisory Details (1)

Auto-updated Nov 2, 2026
Patch available.
Web page

Node.js — Thursday, June 18, 2026 Security Releases

https://nodejs.org/en/blog/vulnerability/june-2026-security-releases

Patch Availability(13)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatnodejs:22-9060020260804140259.rhel92026-08-10redhat
redhatnodejs:22-8100020260703140402.6d8804032026-07-20redhat
redhatnodejs:24-8100020260630152626.6d8804032026-07-15redhat
redhatnodejs22-1:22.23.1-2.el10_02026-07-14redhat
redhatnodejs:22-9080020260626075442.rhel92026-07-06redhat
redhatnodejs22-1:22.23.1-2.el10_22026-07-06redhat
redhatnodejs:24-9080020260626074955.rhel92026-07-06redhat
redhatnodejs24-1:24.18.0-1.el10_22026-07-06redhat
redhatnodejs22-main-22.23.1-2.hum12026-07-03redhat
redhatnodejs24-main-24.18.0-0.2.hum12026-07-01redhat
redhatnodejs26-main-26.4.0-1.3.hum12026-06-30redhat
redhatnodejs20-main-20.20.2-1.hum12026-04-21redhat
redhatnodejs25-main-25.9.0-1.1.hum12026-04-10redhat

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

(8 across 8 ecosystems)
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
nodejs—
  • every version up to 22.23.0-r0: fixed in 22.23.0-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
nodejs—
  • every version up to 22.23.0-r0: fixed in 22.23.0-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
nodejs—
  • every version up to 24.17.0-r0: fixed in 24.17.0-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
nodejs—
  • every version up to 24.17.0-r0: fixed in 24.17.0-r0
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
nodejs12.21.0~dfsg-5 ... 24.18.0+dfsg+~cs24.13.2-1 (174 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
nodejs18.13.0+dfsg1-1 ... 18.20.4+dfsg-1~deb12u2 (22 versions)
  • every version up to 18.20.4+dfsg-1~deb12u3: fixed in 18.20.4+dfsg-1~deb12u3
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
nodejs20.19.2+dfsg-1, 20.19.2+dfsg-1+deb13u1, 20.19.2+dfsg-1+deb13u2
  • every version up to 20.19.2+dfsg-1+deb13u3: fixed in 20.19.2+dfsg-1+deb13u3
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
nodejs20.19.2+dfsg-1 ... 24.16.0+dfsg+~cs24.13.1-2 (38 versions)
  • every version up to 24.17.0+dfsg+~cs24.13.2-1: fixed in 24.17.0+dfsg+~cs24.13.2-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 28× in last 7d / 100× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 590 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 490 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 12:21 UTCEG score recompute
  2. 2026-11-02 12:21 UTCVendor advisory
  3. 2026-11-02 12:21 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub severity MODERATE · GitHub CVSS 5.6
  4. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  5. 2026-11-01 10:59 UTCEG score recompute
  6. 2026-11-01 10:59 UTCVendor advisory
  7. 2026-11-01 10:59 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub severity MODERATE · GitHub CVSS 5.6
  8. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  9. 2026-10-31 09:38 UTCEG score recompute
  10. 2026-10-31 09:38 UTCVendor advisory
  11. 2026-10-31 09:37 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  12. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  13. 2026-10-30 08:16 UTCEG score recompute
  14. 2026-10-30 08:16 UTCVendor advisory
  15. 2026-10-30 08:16 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  16. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  17. 2026-10-29 06:54 UTCEG score recompute
  18. 2026-10-29 06:54 UTCVendor advisory
  19. 2026-10-29 06:54 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  20. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  21. 2026-10-28 05:32 UTCEG score recompute
  22. 2026-10-28 05:32 UTCVendor advisory
  23. 2026-10-28 05:32 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  24. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  25. 2026-10-27 04:11 UTCEG score recompute
Show 75 more
  1. 2026-10-27 04:11 UTCVendor advisory
  2. 2026-10-27 04:10 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  3. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  4. 2026-10-25 22:26 UTCEG score recompute
  5. 2026-10-25 22:26 UTCVendor advisory
  6. 2026-10-25 22:26 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  7. 2026-10-25 20:30 UTCEG score recompute
  8. 2026-10-25 20:30 UTCVendor advisory
  9. 2026-10-25 20:30 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  10. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  11. 2026-10-25 14:23 UTCEG score recompute
  12. 2026-10-24 19:09 UTCEG score recompute
  13. 2026-10-24 19:09 UTCVendor advisory
  14. 2026-10-24 19:09 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  15. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  16. 2026-10-23 17:46 UTCEG score recompute
  17. 2026-10-23 17:46 UTCVendor advisory
  18. 2026-10-23 17:46 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  19. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  20. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  21. 2026-10-22 16:25 UTCEG score recompute
  22. 2026-10-22 16:25 UTCVendor advisory
  23. 2026-10-22 16:24 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  24. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  25. 2026-10-21 15:03 UTCEG score recompute
  26. 2026-10-21 15:03 UTCVendor advisory
  27. 2026-10-21 15:02 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  28. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  29. 2026-10-20 13:39 UTCEG score recompute
  30. 2026-10-20 13:39 UTCVendor advisory
  31. 2026-10-20 13:39 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  32. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  33. 2026-10-19 12:17 UTCEG score recompute
  34. 2026-10-19 12:17 UTCVendor advisory
  35. 2026-10-19 12:17 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  36. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  37. 2026-10-18 10:28 UTCVendor advisory
  38. 2026-10-18 10:28 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  39. 2026-10-18 03:34 UTCEG score recompute
  40. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  41. 2026-10-17 09:05 UTCEG score recompute
  42. 2026-10-17 09:05 UTCVendor advisory
  43. 2026-10-17 09:05 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  44. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  45. 2026-10-16 07:43 UTCEG score recompute
  46. 2026-10-16 07:43 UTCVendor advisory
  47. 2026-10-16 07:43 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  48. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  49. 2026-10-15 06:21 UTCEG score recompute
  50. 2026-10-15 06:21 UTCVendor advisory
  51. 2026-10-15 06:21 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  52. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  53. 2026-10-14 02:02 UTCEG score recompute
  54. 2026-10-14 02:02 UTCVendor advisory
  55. 2026-10-14 02:02 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  56. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  57. 2026-10-12 22:21 UTCEG score recompute
  58. 2026-10-12 22:21 UTCVendor advisory
  59. 2026-10-12 22:21 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  60. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  61. 2026-10-12 16:00 UTCEG score recompute
  62. 2026-10-12 07:21 UTCVendor advisory
  63. 2026-10-12 07:20 UTCGHSA enrichmentGHSA-g779-8rvr-37xx · GitHub CVSS 5.6
  64. 2026-10-11 19:43 UTCEG score recompute
  65. 2026-10-11 16:58 UTCEG score recompute
  66. 2026-10-11 14:22 UTCEG score recompute
  67. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  68. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  69. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  70. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  71. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  72. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  73. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  74. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  75. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.3% · 23rd percentile

Frequently asked(5)

What is CVE-2026-48930?
CVE-2026-48930 is a critical-severity vulnerability; its CVE record was published on June 26, 2026. A flaw in Node.js TLS hostname handling can cause Embedded-nul hostnames can lead to silent authority rebinding due to c-string truncation in resolver bindings. This vulnerability affects all supported release lines: Node.js 22, Node.js 24, and Node.js 26.
When was the CVE record for CVE-2026-48930 published?
The CVE record for CVE-2026-48930 was published on June 26, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 25, 2026; the record at its source may have been updated since.
Is CVE-2026-48930 actively exploited?
CVE-2026-48930 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (24th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-48930?
CVE-2026-48930 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-48930?
A fix for CVE-2026-48930 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-48930 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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