CVE-2026-121745 (GCVE-0-2026-121745)

Vulnerability from cvelistv5 – Published: 2026-11-04 21:28 – Updated: 2026-11-04 21:28
VLAI
Title
nvm exposes NVM_AUTH_HEADER to other local users on the curl/wget command line
Summary
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
2 (Low)
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
2.5 (Low)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-214 - Invocation of Process Using Visible Sensitive Information
Assigner
harborist CNA under the redhat root
CNA scorecard B 86/100 over 22 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
nvm-sh nvm Affected: 0.40.0 , < 0.41.0 (semver)
guessed Create a notification for this product.
Credits
Anthropic's OSS Scanner, as vulnerability ANT-2026-540RL2U6 Jordan Harband (https://github.com/ljharb)
Show details on NVD website
To clipboard 

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              "value": "\u003cp\u003eNode 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.\u003c/p\u003e"
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    "datePublished": "2026-11-04T21:28:03.234Z",
    "dateReserved": "2026-11-03T23:38:59.223Z",
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}



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