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Part of a larger attack: 2025-11-spellcheckers published 28 malicious packages. See the full campaign →
Malicious package

tabullatesPyPI

Advisory published Updated

tabullates is a confirmed malicious PyPI package (MAL-2026-562) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.1, 1.0.2, 1.0.3…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in tabullates (PyPI)

MAL-2026-562
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall tabullates

What this malware does

Packages contain hidden code that is effectively run during importing or using the library, and downloads second stage code. Then, a process running in background periodically connects to a remote host and waits for next code to execute

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2025-11-spellcheckers

Reasons (based on the campaign):

  • obfuscation

  • Downloads and executes a remote malicious script.

  • The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine.

Malicious versions

4 flagged
1.0.11.0.21.0.31.0.4

Indicators of compromise (SHA-256)

499d47c3064299cb3d921b32ac9f22c2bab7b0b841b3de3a0cee3029625d5d26
f5af0290d2ad9a879ef3624e8cca4bec9095fdb44db0282b226e13ea50ff92bd
65716e7bcfa81eb62800794a53ce1f01c6593e89a016b3d30f7803e3107036c4
6af1b6872fcae12cc1651e6981265f929ab2532437971cb983876a9ae6e01aaf
8a340ee49ae80adf9f248ab7d565ff184ce2b93466a522ba91c321a9fe1c7a8f
7fdbcc76dc779d82632d7bfa1643843861e17cb03839382640c68637b61627ff
edc652efce2948b545cecc928fe17e2ad51e20a2e3491c96c52ad85ac727c11c

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for tabullates (4 malicious versions).

  2. If you installed it — respond

    tabullates 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 tabullates was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. tabullates on PyPI has been identified as a malicious package (versions 1.0.1, 1.0.2, 1.0.3, 1.0.4 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2025-11-spellcheckers

References

Credits

  • Kamil Mańkowski (kam193) · analyst

Detect & block this

O3 blocks tabullates-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

tabullates (PyPI) malicious package — MAL-2026-562 | O3 Security