CVE-2025-55131

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-55131
StatePUBLISHED
Assignerhackerone
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-01-20 21:16:03 UTC
Updated2026-07-15 02:17:28 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from ADP

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

EPSS: 0.034930000 probability, percentile 0.878310000 (date 2026-07-17)

Problem Types: CWE-120 | CWE-497 | CWE-120 CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') | CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere

VersionSourceTypeScoreSeverityVector
3.1ADPCVSS7.1HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
3.10b0ca135-0b70-47e7-9f44-1890c2a1c46cSecondary7.1HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
3.0[email protected]Secondary7.1HIGHCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
3.0CNADECLARED7.1HIGHCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Nodejs Node affected 20.19.6 20.19.6 semver Not specified
CNA Nodejs Node affected 22.21.1 22.21.1 semver Not specified
CNA Nodejs Node affected 24.12.0 24.12.0 semver Not specified
CNA Nodejs Node affected 25.2.1 25.2.1 semver Not specified
CNA Nodejs Node affected 4.0 4.* semver Not specified
CNA Nodejs Node affected 5.0 5.* semver Not specified
CNA Nodejs Node affected 6.0 6.* semver Not specified
CNA Nodejs Node affected 7.0 7.* semver Not specified
CNA Nodejs Node affected 8.0 8.* semver Not specified
CNA Nodejs Node affected 9.0 9.* semver Not specified
CNA Nodejs Node affected 10.0 10.* semver Not specified
CNA Nodejs Node affected 11.0 11.* semver Not specified
CNA Nodejs Node affected 12.0 12.* semver Not specified
CNA Nodejs Node affected 13.0 13.* semver Not specified
CNA Nodejs Node affected 14.0 14.* semver Not specified
CNA Nodejs Node affected 15.0 15.* semver Not specified
CNA Nodejs Node affected 16.0 16.* semver Not specified
CNA Nodejs Node affected 17.0 17.* semver Not specified
CNA Nodejs Node affected 18.0 18.* semver Not specified
ADP Red Hat Red Hat Enterprise Linux 10 unaffected 1:24.13.0-1.el10_1 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 10 unaffected 1:22.22.0-3.el10_1 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support unaffected 1:22.22.0-1.el10_0 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8 unaffected 8100020260116121421.6d880403 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8 unaffected 8100020260119091831.6d880403 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 8 unaffected 8100020260119100525.489197e6 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9 unaffected 9070020260117213814.rhel9 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9 unaffected 9070020260117213838.rhel9 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9 unaffected 9070020260117213748.rhel9 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support unaffected 9040020260211171433.rhel9 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support unaffected 9060020260210180816.rhel9 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support unaffected 9060020260210120402.rhel9 * rpm Not specified
ADP Red Hat Red Hat Hardened Images unaffected 24.14.1-4.1.hum1 * rpm Not specified
ADP Red Hat Red Hat Hardened Images unaffected 24.14.1-4.hum1 * rpm Not specified
ADP Red Hat Red Hat Hardened Images unaffected 25.9.0-1.1.hum1 * rpm Not specified
ADP Red Hat Red Hat Hardened Images unaffected 25.9.0-1.hum1 * rpm Not specified
ADP Red Hat Red Hat Hardened Images unaffected 20.20.0-7.1.hum1 * rpm Not specified
ADP Red Hat Red Hat Hardened Images unaffected 22.22.0-1.3.hum1 * rpm Not specified

References

ReferenceSourceLinkTags
access.redhat.com/errata/RHSA-2026:7386 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:6402 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:2768 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
bugzilla.redhat.com/show_bug.cgi 0b0ca135-0b70-47e7-9f44-1890c2a1c46c bugzilla.redhat.com
access.redhat.com/errata/RHSA-2026:2899 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-55131.json 0b0ca135-0b70-47e7-9f44-1890c2a1c46c security.access.redhat.com
access.redhat.com/errata/RHSA-2026:1843 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:2420 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:2422 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:2781 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:2783 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/security/cve/CVE-2025-55131 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:2421 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:1842 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:2782 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:2864 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
nodejs.org/en/blog/vulnerability/december-2025-security-releases [email protected] nodejs.org
access.redhat.com/errata/RHSA-2026:2767 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:7387 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:6431 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
ADP2026-01-20T21:02:45.759ZReported to Red Hat.
ADP2026-01-20T20:41:55.591ZMade public.

Solutions

ADP: RHSA-2026:2899: Red Hat Enterprise Linux AppStream EUS (v. 10.0)

ADP: RHSA-2026:1843: Red Hat Enterprise Linux AppStream (v. 10)

ADP: RHSA-2026:1842: Red Hat Enterprise Linux AppStream (v. 10)

ADP: RHSA-2026:2422: Red Hat Enterprise Linux AppStream (v. 8)

ADP: RHSA-2026:2421: Red Hat Enterprise Linux AppStream (v. 8)

ADP: RHSA-2026:2420: Red Hat Enterprise Linux AppStream (v. 8)

ADP: RHSA-2026:2768: Red Hat Enterprise Linux AppStream EUS (v.9.4)

ADP: RHSA-2026:2767: Red Hat Enterprise Linux AppStream EUS (v.9.6)

ADP: RHSA-2026:2864: Red Hat Enterprise Linux AppStream EUS (v.9.6)

ADP: RHSA-2026:2783: Red Hat Enterprise Linux AppStream (v. 9)

ADP: RHSA-2026:2782: Red Hat Enterprise Linux AppStream (v. 9)

ADP: RHSA-2026:2781: Red Hat Enterprise Linux AppStream (v. 9)

ADP: RHSA-2026:7386: Red Hat Hardened Images

ADP: RHSA-2026:7387: Red Hat Hardened Images

ADP: RHSA-2026:6402: Red Hat Hardened Images

ADP: RHSA-2026:6431: Red Hat Hardened Images

Workarounds

ADP: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

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