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: 0.2%CVSS: 6.2Exploit: None knownExposed services: Not assessed

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
6.2MEDIUMmedium confidence
EG Risk
28
EG Risk 28/100CISA SSVC

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%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
5th
KEV
Not listed

CISA SSVCTrack 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). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 4, 2026

Last Modified

September 3, 2026

Advisory Details (1)

Auto-updated Aug 4, 2026
Patch available.
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 / EcosystemFix (by version range) / 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 rangeFix by version rangeDependents
nodejs—
  • every version up to 22.23.2-r0: fixed in 22.23.2-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
nodejs—
  • every version up to 22.23.2-r0: fixed in 22.23.2-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
nodejs—
  • every version up to 24.18.1-r0: fixed in 24.18.1-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
nodejs—
  • every version up to 24.18.1-r0: fixed in 24.18.1-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 ... 24.21.0+dfsg+~cs24.13.4-1 (91 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
nodejs20.19.2+dfsg-1 ... 24.21.0+dfsg+~cs24.13.4-1 (47 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
nodejs20.19.2+dfsg-1 ... 24.18.0+dfsg+~cs24.13.2-1 (40 versions)
  • every version up to 24.19.0+dfsg+~cs24.13.3-1: fixed in 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 19× in last 7d / 96× 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 211 total refreshes for this CVE.

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

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

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 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 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-58045?
CVE-2026-58045 has a CVSS base score of 6.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-58045?
A fix for CVE-2026-58045 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-58045 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-58045

Explore →

Is Your Infrastructure Affected by CVE-2026-58045?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs