Malicious npm packages abuse dependency confusion to profile developer environments

In this article 1. Attack chain overview 2. Threat actor attribution 3. Mitigation and protection guidance 4. Indicators of Compromise IOC 5. References 6. Learn more Microsoft Threat Intelligence has uncovered an active supply chain attack involving malicious npm packages registered under...

Malicious code in @car-loans/online-scoring-aff (npm)

Part of a dependency confusion attack campaign targeting the @car-loans, @fb-deposit, and @debit-ib npm scopes. The attacker npm user pik-libs published 25 scoped packages at the inflated version 99.99.99, which resolves ahead of any private registry version via npm's default version resolution,...

Malicious code in @debit-ib/desktop-debit-ib-additional-card-form (npm)

Part of a dependency confusion attack campaign targeting the @car-loans, @fb-deposit, and @debit-ib npm scopes. The attacker npm user pik-libs published 25 scoped packages at the inflated version 99.99.99, which resolves ahead of any private registry version via npm's default version resolution,...

MAL-2026-4960 Malicious code in @cloudplatform-single-spa/postgre (npm)

Part of a dependency confusion attack campaign targeting the @cloudplatform-single-spa and @mlspace npm scopes. The attacker npm user mr.4nd3r50n published 139 scoped packages at the inflated version 99.99.99, which resolves ahead of any private registry version via npm's default version...

Malicious code in @cloudplatform-single-spa/dataplatform (npm)

Part of a dependency confusion attack campaign targeting the @cloudplatform-single-spa and @mlspace npm scopes. The attacker npm user mr.4nd3r50n published 139 scoped packages at the inflated version 99.99.99, which resolves ahead of any private registry version via npm's default version...

MAL-2026-4872 Malicious code in @car-loans/gus (npm)

Part of a dependency confusion attack campaign targeting the @car-loans, @fb-deposit, and @debit-ib npm scopes. The attacker npm user pik-libs published 25 scoped packages at the inflated version 99.99.99, which resolves ahead of any private registry version via npm's default version resolution,...

CVE-2026-45321

On 2026-05-11, between approximately 19:20 and 19:26 UTC, 84 malicious versions across 42 @tanstack/ packages were published to the npm registry. The publishes were authenticated via the legitimate GitHub Actions OIDC trusted-publisher binding for TanStack/router, but the publish workflow itself...

GlassWorm Malware Takedown Disrupts Developer Supply Chain Attack Infrastructure

CrowdStrike, in partnership with Google and the Shadowserver Foundation, has announced the simultaneous disruption of all command-and-control C2 channels associated with GlassWorm, a persistent software chain campaign targeting software developers through malicious packages and extensions. "Since...

MAL-2026-4219 Malicious code in wallet-security-checker (npm)

A coordinated supply-chain attack comprising 10 npm packages published by maintainer ddjidd5640 [email protected] within a 48-hour window 2026-05-19T03:55Z – 2026-05-21T04:31Z. All packages masquerade as legitimate Web3/DeFi developer security tools MCP servers while silently exfiltrating...

Malicious code in polymarket-bot (npm)

A coordinated supply-chain attack comprising 9 npm packages published by maintainer polymarketdev GitHub actor texsellix, repo texsellix/polymarket-trading-bot within a 2-minute window on 2026-05-20T23:30Z–23:32Z. All packages masquerade as legitimate Polymarket CLOB trading tools while...

Malicious code in polymarket-trader (npm)

A coordinated supply-chain attack comprising 9 npm packages published by maintainer polymarketdev GitHub actor texsellix, repo texsellix/polymarket-trading-bot within a 2-minute window on 2026-05-20T23:30Z–23:32Z. All packages masquerade as legitimate Polymarket CLOB trading tools while...

MAL-2026-4209 Malicious code in polymarket-ai-agent (npm)

A coordinated supply-chain attack comprising 9 npm packages published by maintainer polymarketdev GitHub actor texsellix, repo texsellix/polymarket-trading-bot within a 2-minute window on 2026-05-20T23:30Z–23:32Z. All packages masquerade as legitimate Polymarket CLOB trading tools while...

MAL-2026-4214 Malicious code in polymarket-terminal (npm)

A coordinated supply-chain attack comprising 9 npm packages published by maintainer polymarketdev GitHub actor texsellix, repo texsellix/polymarket-trading-bot within a 2-minute window on 2026-05-20T23:30Z–23:32Z. All packages masquerade as legitimate Polymarket CLOB trading tools while...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code that conceals a credential-stealing payload and worm propagation logic. A malicious actor associated with the "TeamPCP" or "Mini Shai-Hulud" campaign compromised a maintainer's access token; this allowed the...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code that conceals a credential-stealing payload and worm propagation logic. A malicious actor associated with the "TeamPCP" or "Mini Shai-Hulud" campaign compromised a maintainer's access token; this allowed the...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code that conceals a credential-stealing payload and worm propagation logic. A malicious actor associated with the "TeamPCP" or "Mini Shai-Hulud" campaign compromised a maintainer's access token; this allowed the...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code that conceals a credential-stealing payload and worm propagation logic. A malicious actor associated with the "TeamPCP" or "Mini Shai-Hulud" campaign compromised a maintainer's access token; this allowed the...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code that conceals a credential-stealing payload and worm propagation logic. A malicious actor associated with the "TeamPCP" or "Mini Shai-Hulud" campaign compromised a maintainer's access token; this allowed the...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code that conceals a credential-stealing payload and worm propagation logic. A malicious actor associated with the "TeamPCP" or "Mini Shai-Hulud" campaign compromised a maintainer's access token; this allowed the...

Embedded Malicious Code

Overview Affected versions of this package are vulnerable to Embedded Malicious Code that conceals a credential-stealing payload and worm propagation logic. A malicious actor associated with the "TeamPCP" or "Mini Shai-Hulud" campaign compromised a maintainer's access token; this allowed the...