Skip to main content
Press slash or control plus K to focus the search. Use the arrow keys to navigate results and press enter to open a threat.
Reconnecting to live updates…

MAL-2026-10576: Malicious code in tennacity (PyPI)

0
High
Published: 07/14/2026 (07/14/2026, 10:08:54 UTC)
Source: GCVE Database
Product: tennacity

Description

The PyPI package 'tennacity' versions 1.0.0, 1.2.0, and 1.2.2 are typosquatted malicious packages that install a Mythic/Poseidon C2 framework beacon. After installation, the beacon establishes communication with a command and control server at wegoexchange[.]site to receive further commands. The package contains code to detect sandbox environments and ensures persistence on the infected system. This campaign is identified as malicious with clear intent to deploy malware and execute remote code.

Affected software

PyPIghsa
tennacity
Affected versions
=1.0.0=1.2.0=1.2.2

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: 07/14/2026, 11:33:19 UTC

Technical Analysis

This threat involves a typosquatted PyPI package named 'tennacity' in versions 1.0.0, 1.2.0, and 1.2.2 that installs a Mythic/Poseidon command and control (C2) beacon. The malicious code ensures persistence on the infected host and communicates with a remote C2 server at wegoexchange[.]site for additional commands. The package also includes sandbox detection mechanisms to evade analysis. The campaign is classified as malicious with activities including malware installation, remote executable download and execution, and persistence mechanisms.

Potential Impact

The malicious package installs a persistent C2 beacon that can receive and execute commands from a remote attacker, potentially leading to unauthorized control of the infected system. The presence of sandbox detection indicates attempts to evade security analysis, increasing the risk of undetected compromise. This can result in data theft, system manipulation, or further malware deployment.

Mitigation Recommendations

No official patch or remediation is available as this is a malicious typosquatting package rather than a vulnerability in legitimate software. The best mitigation is to avoid installing packages from untrusted or suspicious sources and verify package authenticity before installation. Security teams should monitor for and remove any instances of these specific versions (=1.0.0, =1.2.0, =1.2.2) of the 'tennacity' package if found in their environments.

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-2026-10576
Osv Schema Version
1.7.4
Aliases
[]
Ecosystems
["PyPI"]
Database Specific Severity
null
Cvss Version
null

Threat ID: 6a561c4668715ace43659dc5

Added to database: 07/14/2026, 11:23:50 UTC

Last enriched: 07/14/2026, 11:33:19 UTC

Last updated: 07/14/2026, 11:33:19 UTC

Views: 4

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