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CISA warns of data-theft bug in NSA-developed GrassMarlin tool

By PulseAugur Editorial · [1 sources] ·

The Cybersecurity and Infrastructure Security Agency (CISA) has issued a warning about a data-theft vulnerability, CVE-2026-6807, affecting GrassMarlin, a network security tool developed by the NSA. This flaw, stemming from insufficient hardening of XML parsing, allows attackers to potentially exfiltrate sensitive information. As GrassMarlin reached its end-of-life in 2017, no official patches are available, and CISA recommends general security best practices for critical infrastructure and industrial control systems. AI

IMPACT This vulnerability in a legacy NSA tool highlights ongoing risks in critical infrastructure security, even for non-AI systems.

RANK_REASON A cybersecurity agency flags a vulnerability in a specific software tool.

Read on The Register — AI →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

CISA warns of data-theft bug in NSA-developed GrassMarlin tool

How we ranked this

Signal score
0 / 100
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Newsworthiness bucket
Tool
A cybersecurity agency flags a vulnerability in a specific software tool.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
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safety, other
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AI-industry relevance
Low
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Story freshness
152 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

Full methodology in our editorial standards.

COVERAGE [1]

  1. The Register — AI TIER_1 English(EN) · Connor Jones ·

    CISA flags data-theft bug in NSA-built OT networking tool

    <h4>GrassMarlin leaks sensitive information, provided your targeting phishing skills are sharp enough</h4> <p>The Cybersecurity and Infrastructure Security Agency (CISA) is warning anyone who uses GrassMarlin, a tool developed by the National Security Agency (NSA), about a new vu…

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