Skip to main content

Malicious code in beaver-ui-form-object (npm)

0
Critical
Published: 08/05/2026 (08/05/2026, 08:53:17 UTC)
Source: GCVE Database
Product: beaver-ui-form-object

Description

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (b5b91edd276d95174766d639bab6981de8e07b4261e57668fc61f8e7dd96cc1e) On require of the package, `index.js` loads `_polyfill.js` whose top-level `bootstrap()` fetches an opaque platform-specific binary over HTTPS from string-fragment-assembled hosts (reconstructing `oob-worker.cf101-adf.workers.dev` and `sdk.dl.wel1.ru`, with a DNS-TXT fallback for endpoint discovery), writes it to `/var/tmp` or `%TEMP%` under disguised names such as `dotnet_diag_<hex>.exe` and `.cache_<hex>`, chmods it 755, and spawns it detached via `cp.spawn("/bin/sh", ["-c", fp+" &"], {detached:true}).unref()` (with a `cmd` branch on Windows). The download hostnames are assembled at runtime from split string arrays to evade static analysis. A second bundled module, `lib/telemetry.js`, implements the same fetch-write-chmod-spawn pattern using base64 buffer assembly and `fs["chmod"+"Sync"](..., 0o755)`. There is no version pin, no hash or signature verification, and the endpoint is not a first-party publisher domain. Installing or importing this package auto-executes attacker-controlled native code on the host. ## Source: ghsa-malware (dcb6256c0a6b54da5f083f0ebe7609d6b1d6b4a7b517c6008486e9050583d8bf) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Affected software

npmghsa
beaver-ui-form-object
Affected versions
=34.7.5=12.1.7=35.7.3

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 08/05/2026, 21:03:03 UTC

Technical Analysis

The beaver-ui-form-object npm package versions 34.7.5, 12.1.7, and 35.7.3 include malicious functionality where the index.js script loads a polyfill that dynamically assembles domain names to fetch opaque platform-specific binaries over HTTPS from non-trusted external hosts. These binaries are saved to temporary directories with disguised names, permissions are set to executable, and the binaries are spawned detached via shell commands. A secondary module, lib/telemetry.js, performs similar fetch-write-execute actions using base64 buffer assembly and dynamic chmod calls. There is no integrity verification or use of first-party domains, resulting in automatic execution of attacker-controlled native code upon package use.

Potential Impact

This malicious package enables remote code execution on the host system immediately upon installation or import, allowing attackers to run arbitrary native code with the privileges of the user executing the package. This can lead to full system compromise, data theft, persistence, or further lateral movement depending on the environment.

Mitigation Recommendations

No official patch or remediation is currently documented. Users should immediately avoid installing or importing the affected versions of beaver-ui-form-object (=12.1.7, =34.7.5, =35.7.3). Remove any existing installations of these versions from systems. Monitor for suspicious processes spawned from temporary directories with disguised executable names. Verify package integrity and source before installation. Consider using trusted package registries and supply chain security tools to detect malicious packages.

Pro Console: star threats, build custom feeds, automate alerts via Slack, email & webhooks.Upgrade to Pro

Technical Details

Gcve Source
db.gcve.eu
Osv Id
MAL-2026-12145
Osv Schema Version
1.7.4
Ecosystems
["npm"]

Threat ID: 6a738531bf8831d5394f0733

Added to database: 08/05/2026, 18:47:13 UTC

Last enriched: 08/05/2026, 21:03:03 UTC

Last updated: 09/17/2026, 14:26:46 UTC

Views: 20

Community Reviews

0 reviews

Crowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.

Sort by
Loading community insights…

Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.

Actions

PRO

Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.

Please log in to the Console to use AI analysis features.

Need more coverage?

Upgrade to Pro Console for AI refresh and higher limits.

For incident response and remediation, OffSeq services can help resolve threats faster.

Latest Threats

Breach by OffSeqOFFSEQFRIENDS — 25% OFF

Check if your credentials are on the dark web

Instant breach scanning across billions of leaked records. Free tier available.

Scan now
OffSeq TrainingCredly Certified

Lead Pen Test Professional

Technical5-day eLearningPECB Accredited
View courses