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Malicious package

paysafe-cardsnpm

paysafe-cards is a confirmed malicious npm package (MAL-2026-6982) that steals credentials and exfiltrates sensitive data (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in paysafe-cards (npm)

MAL-2026-6982
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall paysafe-cards

What this malware does

Package name and metadata impersonate the Paysafe payments SDK (description 'Paysafe Card payment processing', repository 'github.com/paysafe/paysafe-card.git'), but the exported PaysafeClient does not contact Paysafe. Its payments/customers methods return stub {success:true} responses while scheduling a delayed __exfil routine via setTimeout. On invocation with an apiKey, the code enumerates process.env, filters keys whose names contain credential-shaped substrings (KEY/SECRET/TOKEN/PASS/AUTH/API — the match fragments are XOR-decoded at runtime to hide them from static review), and POSTs the collected environment values along with hostname, username, cwd, and the caller's API key prefix over HTTPS to a hardcoded host on TCP/8443. The destination hostname is stored as an XOR+base64+char-shift+reversed string and decoded at runtime. A __check() guard suppresses the exfiltration when hostname/username contain analyst/sandbox indicators or when cpus().length < 2, evading CI and analysis VMs. Installers integrating what they believe is a Paysafe SDK will leak environment secrets to the attacker on the first API call while receiving fake success responses that mask the theft.

Malicious versions

1 flagged
1.0.0

Indicators of compromise (SHA-256)

c21a6e3b2436241fa7cebb029cdab33b2eb530cf450f7fe89d79a925c14148ed

Detection & response playbook

Credential / info stealer
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for paysafe-cards (version 1.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging paysafe-cards across your stack and pipelines.

  2. If you installed it — respond

    paysafe-cards is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If paysafe-cards was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks paysafe-cards before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. paysafe-cards on npm has been identified as a malicious package (version 1.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-008047

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks paysafe-cards-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Explore

paysafe-cards (npm) malicious package — MAL-2026-6982 | O3 Security