[BUG] "loading from incorrect packument" causes silent failure during npm install

[TrevorBurnham]

Is there an existing issue for this?

• I have searched the existing issues

This issue exists in the latest npm version

• I am using the latest npm

Current Behavior

I've been doing some work with an internal registry with some unusual configuration. I recently noticed that npm install would fail with no indication of what went wrong other than exiting with status code 1:

4985 verbose os Darwin 24.3.0
4986 verbose node v20.18.1
4987 verbose npm  v10.8.2
4988 verbose exit 1
4989 verbose code 1
4990 error A complete log of this run can be found in: /Users/trevorbb/.npm/_logs/2025-02-25T20_06_50_716Z-debug-0.log

I eventually found that the install went fine if I used npm install --no-audit. If I ran npm audit, I'd get an error with some more useful information:

67 silly packumentCache corgi:<custom registry URL> set size:4255 disposed:false
68 verbose stack Error: loading from incorrect packument
68 verbose stack     at Advisory.load (/Users/trevorbb/.local/share/fnm/node-versions/v20.18.1/installation/lib/node_modules/npm/node_modules/@npmcli/metavuln-calculator/lib/advisory.js:91:27)
68 verbose stack     at [calculate] (/Users/trevorbb/.local/share/fnm/node-versions/v20.18.1/installation/lib/node_modules/npm/node_modules/@npmcli/metavuln-calculator/lib/index.js:60:14)
68 verbose stack     at async Promise.all (index 0)
68 verbose stack     at async [init] (/Users/trevorbb/.local/share/fnm/node-versions/v20.18.1/installation/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/audit-report.js:188:9)
68 verbose stack     at async AuditReport.run (/Users/trevorbb/.local/share/fnm/node-versions/v20.18.1/installation/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/audit-report.js:109:7)
68 verbose stack     at async Arborist.audit (/Users/trevorbb/.local/share/fnm/node-versions/v20.18.1/installation/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/arborist/index.js:254:24)
68 verbose stack     at async Audit.auditAdvisories (/Users/trevorbb/.local/share/fnm/node-versions/v20.18.1/installation/lib/node_modules/npm/lib/commands/audit.js:69:5)
68 verbose stack     at async Audit.exec (/Users/trevorbb/.local/share/fnm/node-versions/v20.18.1/installation/lib/node_modules/npm/lib/commands/audit.js:49:7)
68 verbose stack     at async Npm.exec (/Users/trevorbb/.local/share/fnm/node-versions/v20.18.1/installation/lib/node_modules/npm/lib/npm.js:207:9)
68 verbose stack     at async module.exports (/Users/trevorbb/.local/share/fnm/node-versions/v20.18.1/installation/lib/node_modules/npm/lib/cli/entry.js:74:5)

Expected Behavior

npm install should emit fatal errors that occur during the audit step.

Steps To Reproduce

This one's tricky to reproduce, since in my case it only occurred because my registry was returning an invalid packument. However, I suspect that the same issue would occur with any thrown error during the audit step of npm install.

Environment

• npm: 10.9.2
• Node.js: 20.18.1
• OS Name: macOS 15.3.1