# Unable to verify leaf signature

**URL:** <https://discourse.nodered.org/t/unable-to-verify-leaf-signature/87324>\
**Category:** General\
**Created:** [19 April 2024 03:06 UTC](https://discourse.nodered.org/t/unable-to-verify-leaf-signature/87324 "2024-04-19T03:06:11Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![matt6575](https://avatars.discourse-cdn.com/v4/letter/m/45deac/32.png) [@matt6575](https://discourse.nodered.org/u/matt6575)\
**Post date:** [19 April 2024 03:06 UTC](https://discourse.nodered.org/t/unable-to-verify-leaf-signature/87324/1 "2024-04-19T03:06:11Z")

</div>

I'm unable to update Node-Red or install/update modules.  
Running npm install -g --unsafe-perm node-red results in this error log.

> **Summary**
>
> 0 verbose cli [  
> 0 verbose cli 'C:\Program Files\nodejs\node.exe',  
> 0 verbose cli 'C:\Users\mediapc\AppData\Roaming\npm\node\_modules\npm\bin\npm-cli.js',  
> 0 verbose cli 'install',  
> 0 verbose cli '-g',  
> 0 verbose cli '--unsafe-perm',  
> 0 verbose cli 'node-red'  
> 0 verbose cli ]  
> 1 info using npm@8.3.0  
> 2 info using node@v18.19.0  
> 3 timing npm:load:whichnode Completed in 1ms  
> 4 timing config:load:defaults Completed in 2ms  
> 5 timing config:load:file:C:\Users\mediapc\AppData\Roaming\npm\node\_modules\npm\npmrc Completed in 7ms  
> 6 timing config:load:builtin Completed in 8ms  
> 7 timing config:load:cli Completed in 2ms  
> 8 timing config:load:env Completed in 0ms  
> 9 timing config:load:project Completed in 1ms  
> 10 timing config:load:file:C:\Users\mediapc.npmrc Completed in 0ms  
> 11 timing config:load:user Completed in 0ms  
> 12 timing config:load:file:C:\Users\mediapc\AppData\Roaming\npm\etc\npmrc Completed in 0ms  
> 13 timing config:load:global Completed in 0ms  
> 14 timing config:load:validate Completed in 0ms  
> 15 timing config:load:credentials Completed in 1ms  
> 16 timing config:load:setEnvs Completed in 1ms  
> 17 timing config:load Completed in 16ms  
> 18 timing npm:load:configload Completed in 16ms  
> 19 timing npm:load:setTitle Completed in 0ms  
> 20 timing config:load:flatten Completed in 3ms  
> 21 timing npm:load:display Completed in 5ms  
> 22 verbose logfile C:\Users\mediapc\AppData\Local\npm-cache\_logs\2024-04-19T02\_49\_25\_852Z-debug-0.log  
> 23 timing npm:load:logFile Completed in 6ms  
> 24 timing npm:load:timers Completed in 0ms  
> 25 timing npm:load:configScope Completed in 0ms  
> 26 timing npm:load Completed in 29ms  
> 27 timing arborist:ctor Completed in 1ms  
> 28 silly logfile start cleaning logs, removing 1 files  
> 29 timing idealTree:init Completed in 6ms  
> 30 timing idealTree:userRequests Completed in 2ms  
> 31 silly idealTree buildDeps  
> 32 silly fetch manifest node-red@\*  
> 33 silly placeDep ROOT node-red@ OK for: want: \*  
> 34 timing idealTree:#root Completed in 70528ms  
> 35 timing idealTree:node\_modules/node-red Completed in 0ms  
> 36 timing idealTree:buildDeps Completed in 70530ms  
> 37 timing idealTree:fixDepFlags Completed in 1ms  
> 38 timing idealTree Completed in 70541ms  
> 39 timing command:install Completed in 70555ms  
> 40 verbose type system  
> 41 verbose stack FetchError: request to [https://registry.npmjs.org/node-red](https://registry.npmjs.org/node-red) failed, reason: unable to verify the first certificate  
> 41 verbose stack at ClientRequest. (C:\Users\mediapc\AppData\Roaming\npm\node\_modules\npm\node\_modules\minipass-fetch\lib\index.js:110:14)  
> 41 verbose stack at ClientRequest.emit (node:events:517:28)  
> 41 verbose stack at TLSSocket.socketErrorListener (node:\_http\_client:501:9)  
> 41 verbose stack at TLSSocket.emit (node:events:529:35)  
> 41 verbose stack at emitErrorNT (node:internal/streams/destroy:151:8)  
> 41 verbose stack at emitErrorCloseNT (node:internal/streams/destroy:116:3)  
> 41 verbose stack at process.processTicksAndRejections (node:internal/process/task\_queues:82:21)  
> 42 verbose cwd C:\Windows\System32  
> 43 verbose Windows\_NT 10.0.19045  
> 44 verbose argv "C:\Program Files\nodejs\node.exe" "C:\Users\mediapc\AppData\Roaming\npm\node\_modules\npm\bin\npm-cli.js" "install" "-g" "--unsafe-perm" "node-red"  
> 45 verbose node v18.19.0  
> 46 verbose npm v8.3.0  
> 47 error code UNABLE\_TO\_VERIFY\_LEAF\_SIGNATURE  
> 48 error errno UNABLE\_TO\_VERIFY\_LEAF\_SIGNATURE  
> 49 error request to [https://registry.npmjs.org/node-red](https://registry.npmjs.org/node-red) failed, reason: unable to verify the first certificate  
> 50 verbose exit 1  
> 51 timing npm Completed in 71000ms  
> 52 verbose unfinished npm timer reify 1713494966284  
> 53 verbose unfinished npm timer reify:loadTrees 1713494966295  
> 54 verbose code 1  
> 55 error A complete log of this run can be found in:  
> 55 error C:\Users\mediapc\AppData\Local\npm-cache\_logs\2024-04-19T02\_49\_25\_852Z-debug-0.log

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<div class="post-metadata">

**Author:** ![bakman2](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/bakman2/32/6207_2.png) [@bakman2](https://discourse.nodered.org/u/bakman2)\
**Post date:** [19 April 2024 05:33 UTC](https://discourse.nodered.org/t/unable-to-verify-leaf-signature/87324/2 "2024-04-19T05:33:04Z")

</div>

how did you install node/npm ?

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<div class="post-metadata">

**Author:** ![TotallyInformation](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/totallyinformation/32/31_2.png) [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Post date:** [19 April 2024 08:02 UTC](https://discourse.nodered.org/t/unable-to-verify-leaf-signature/87324/3 "2024-04-19T08:02:27Z")

</div>

> [@matt6575](#):
>
> Windows\_NT 10.0.19045

What version of Windows are you running. Are you behind on patches/updates? I'm on 10.0.22631 (W11 23H2)

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<div class="post-metadata">

**Author:** ![matt6575](https://avatars.discourse-cdn.com/v4/letter/m/45deac/32.png) [@matt6575](https://discourse.nodered.org/u/matt6575)\
**Post date:** [19 April 2024 16:25 UTC](https://discourse.nodered.org/t/unable-to-verify-leaf-signature/87324/4 "2024-04-19T16:25:21Z")

</div>

Windows 10 22H2  
19045.4291

Installed npm with msi installer from [Node.js — Download Node.js®](https://nodejs.org/en/download).  
Installed node-red with npm install -g --unsafe-perm node-red

This install has been running for a couple years at this point without issue.

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<div class="post-metadata">

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [19 April 2024 17:23 UTC](https://discourse.nodered.org/t/unable-to-verify-leaf-signature/87324/5 "2024-04-19T17:23:10Z")

</div>

Are you begin a proxy or VPN or some other network thing?

This can also sometimes be the result of a MITM hack.

Failing that, your system has an issue with certs.

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<div class="post-metadata">

**Author:** ![matt6575](https://avatars.discourse-cdn.com/v4/letter/m/45deac/32.png) [@matt6575](https://discourse.nodered.org/u/matt6575)\
**Post date:** [20 April 2024 16:25 UTC](https://discourse.nodered.org/t/unable-to-verify-leaf-signature/87324/6 "2024-04-20T16:25:53Z")

</div>

I think the issue was being caused by Eset antivirus https scanning. I removed eset and the problem went away. Re-installed eset and the problem did not return. Anyhow everything appears to be working again.

Thanks

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [19 July 2024 16:26 UTC](https://discourse.nodered.org/t/unable-to-verify-leaf-signature/87324/7 "2024-07-19T16:26:27Z")

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