CVE-2025-55131

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-01-20. NVD baseline CVSS 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 3%CVSS: 7.1Exploit: NoneExposed: 0

A fix is available — apply it.

A flaw in Node.js's buffer allocation logic can expose uninitialized memory when allocations are interrupted, when using the vm module with the timeout option. Under specific timing conditions, buffers allocated with Buffer.alloc and other TypedArray instances like Uint8Array may contain leftover data from previous operations, allowing in-process secrets like tokens or passwords to leak or causing data corruption. While exploitation typically requires precise timing or in-process code execution, it can become remotely exploitable when untrusted input influences workload and timeouts, leading to potential confidentiality and integrity impact.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
—
EPSS
87.9%
KEV
Not listed

Published

January 20, 2026

Last Modified

July 15, 2026

Advisory Details (10)

Auto-updated Jul 15, 2026
Patch available. Sources: redhat.
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:2782
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:2781
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.4 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:2768
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.6 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:2767
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:2422
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:2421
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:2420
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:1843
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:1842
generic

Node.js — Tuesday, January 13, 2026 Security Releases

https://nodejs.org/en/blog/vulnerability/december-2025-security-releases

Vendor Advisories for CVE-2025-55131(19)

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

Patch Availability(18)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatnodejs24-main-24.14.1-4.1.hum12026-04-11redhat
redhatnodejs20-main-20.20.0-7.1.hum12026-04-10redhat
redhatnodejs22-main-22.22.0-1.3.hum12026-04-10redhat
redhatnodejs25-main-25.9.0-1.1.hum12026-04-10redhat
redhatnodejs25-main-25.9.0-1.hum12026-04-02redhat
redhatnodejs24-main-24.14.1-4.hum12026-04-01redhat
redhatnodejs:22-9060020260210120402.rhel92026-02-18redhat
redhatnodejs22-1:22.22.0-1.el10_02026-02-18redhat
redhatnodejs:20-9060020260210180816.rhel92026-02-17redhat
redhatnodejs:20-9040020260211171433.rhel92026-02-17redhat
redhatnodejs:20-9070020260117213748.rhel92026-02-17redhat
redhatnodejs:22-9070020260117213838.rhel92026-02-17redhat
redhatnodejs:24-9070020260117213814.rhel92026-02-17redhat
redhatnodejs:22-8100020260119091831.6d8804032026-02-10redhat
redhatnodejs:24-8100020260116121421.6d8804032026-02-10redhat
redhatnodejs:20-8100020260119100525.489197e62026-02-10redhat
redhatnodejs24-1:24.13.0-1.el10_12026-02-05redhat
redhatnodejs22-1:22.22.0-3.el10_12026-02-05redhat

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.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 39× 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 112 total refreshes for this CVE.

  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-22 14:07 UTCEPSS rescore
  3. 2026-07-21 15:24 UTCEPSS rescore
  4. 2026-07-20 17:08 UTCEPSS rescore
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  1. 2026-07-02 17:01 UTCEPSS rescore
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  6. 2026-06-28 14:07 UTCEPSS rescore
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  8. 2026-06-28 04:55 UTCEPSS rescore
  9. 2026-06-27 03:08 UTCEPSS rescore
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  11. 2026-06-25 13:49 UTCEPSS rescore
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  22. 2026-06-18 17:52 UTCEPSS rescore
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  26. 2026-06-16 17:52 UTCEPSS rescore
  27. 2026-06-15 17:48 UTCEPSS rescore
  28. 2026-06-14 23:17 UTCEPSS rescore
  29. 2026-06-13 23:00 UTCEPSS rescore
  30. 2026-06-12 23:11 UTCEPSS rescore
  31. 2026-06-11 14:00 UTCEPSS rescore
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  37. 2026-06-08 14:16 UTCEPSS rescore
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  39. 2026-06-07 15:24 UTCEPSS rescore
  40. 2026-06-07 15:24 UTCEPSS rescore
  41. 2026-06-05 22:46 UTCEPSS rescore
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  43. 2026-06-05 06:10 UTCEPSS rescore
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  45. 2026-06-04 13:12 UTCEPSS rescore
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  49. 2026-06-01 13:51 UTCEPSS rescore
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  51. 2026-05-31 22:30 UTCEPSS rescore
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  53. 2026-05-31 00:16 UTCEPSS rescore
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  55. 2026-05-29 13:44 UTCEPSS rescore
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  67. 2026-05-26 07:18 UTCEPSS rescore
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  70. 2026-05-24 16:57 UTCEPSS rescore
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  73. 2026-05-22 21:16 UTCEPSS rescore
  74. 2026-05-21 22:43 UTCEPSS rescore
  75. 2026-05-21 00:36 UTCEG score recompute

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Frequently asked(5)

What is CVE-2025-55131?
CVE-2025-55131 is a high vulnerability published on January 20, 2026. A flaw in Node.js's buffer allocation logic can expose uninitialized memory when allocations are interrupted, when using the vm module with the timeout option. Under specific timing conditions, buffers allocated with Buffer.alloc and other TypedArray instances like Uint8Array may contain leftover…
When was CVE-2025-55131 disclosed?
CVE-2025-55131 was first published in the National Vulnerability Database on January 20, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-55131 actively exploited?
CVE-2025-55131 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 87.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-55131?
CVE-2025-55131 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2025-55131?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-55131, 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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