CVSS 4.0
2.0 lowCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NCVE-2026-121745
Low (2.0) in nvm-sh nvm. EPSS 0.1% estimated probability of exploitation activity in the next 30 days.
Node Version Manager (nvm) is a POSIX-compliant shell function for managing multiple node.js versions. In versions 0.40.0 through 0.40.8, when `NVM_AUTH_HEADER` is set, `nvm_download` passes the credential to curl or wget as a `--header "Authorization: ..."` command-line argument. Process arguments are visible to every local user (on Linux via `ps` or `/proc//cmdline` unless `/proc` is mounted with `hidepid=`; on macOS via `ps`), so another unprivileged account on the same machine can read the token while nvm is downloading during `nvm ls-remote`, `nvm install`, and similar commands, and gain whatever access it grants on the private mirror. Only users who set `NVM_AUTH_HEADER` on a host shared with other local accounts are affected. Version 0.41.0 passes the header to curl on stdin and to GNU Wget in a private temporary config file. BusyBox wget reads no config file, so when it is the only downloader available the header is still passed as an argument.
Severity
CVSS 3.1
2.5 lowCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N- EPSS
- 0.1% estimated probability of exploitation activity in the next 30 days; 2nd percentile. Scored 2026-11-10. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: no · Technical impact: partial, assessed 2026-11-09. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-214 Invocation of Process Using Visible Sensitive Information
- Published
- Assigned by
- harborist (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| nvm-sh nvm | from 0.40.0 before 0.41.0 |
Red Hat
Red Hat rates this Low.
This vulnerability is rated as Low severity because successful credential exposure requires an unprivileged local attacker to inspect process tables during a transient execution window, and it solely affects systems configured with custom authentication headers for private mirrors. Red Hat products do not distribute Node Version Manager by default, limiting potential exposure to user-managed developer environments where multi-tenant access is uncommon. Additionally, the flaw is restricted to local token disclosure and does not compromise system availability or integrity.
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.
Contains Red Hat Security Data © Red Hat, Inc., licensed under CC BY 4.0. Source: https://access.redhat.com/security/data. Modified: reformatted. Red Hat's page for CVE-2026-121745.