CVE-2026-58045

MEDIUMPre-NVD 6.26.2—
EchelonGraph scoreMEDIUM confidence

Score 6.2 from GitHub Security Advisory published 2026-08-04. a secondary CVSS source baseline 6.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
6.2EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.2Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw in Node.js allows a spoofed TypedArray byteLength to trigger a reachable assertion in the synchronous node:zlib APIs, causing the entire process to crash. All 11 synchronous zlib functions are affected. Repeated exploitation of this condition can result in a denial of service. This vulnerability affects Node.js 22.x, 24.x, and 26.x.

CVSS v3
6.2
EG Score
6.2(medium)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity62% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

August 4, 2026

Last Modified

September 3, 2026

Advisory Details (1)

Auto-updated Aug 4, 2026
No patch confirmed yet.
generic

Node.js — Wednesday, July 29, 2026 Security Releases

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

Vendor Advisories for CVE-2026-58045(4)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatnodejs26-main-26.7.0-1.5.1.hum12026-08-10redhat
redhatnodejs24-main-24.18.1-0.1.hum12026-07-30redhat
redhatnodejs22-main-22.23.2-2.3.hum12026-07-29redhat

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 rangeFixed inDependents
nodejs—22.23.2-r0—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
nodejs—22.23.2-r0—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
nodejs—24.18.1-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
nodejs—24.18.1-r0—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
nodejs12.21.0~dfsg-5 ... 24.18.0+dfsg+~cs24.13.2-1 (174 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
nodejs18.13.0+dfsg1-1 ... 24.20.0+dfsg+~cs24.13.3-2 (90 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
nodejs20.19.2+dfsg-1 ... 24.20.0+dfsg+~cs24.13.3-2 (45 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
nodejs20.19.2+dfsg-1 ... 24.18.0+dfsg+~cs24.13.2-1 (40 versions)24.19.0+dfsg+~cs24.13.3-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 26× in last 7d / 106× 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 166 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-58045?
CVE-2026-58045 is a medium vulnerability published on August 4, 2026. A flaw in Node.js allows a spoofed TypedArray byteLength to trigger a reachable assertion in the synchronous node:zlib APIs, causing the entire process to crash. All 11 synchronous zlib functions are affected. Repeated exploitation of this condition can result in a denial of service. This…
When was CVE-2026-58045 disclosed?
CVE-2026-58045 was first published in the National Vulnerability Database on August 4, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58045 actively exploited?
CVE-2026-58045 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 93.8% of all scored CVEs.
What is the CVSS score of CVE-2026-58045?
CVE-2026-58045 has a CVSS v3 base score of 6.2 (NVD).
How do I remediate CVE-2026-58045?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58045, 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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