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    2 vulnerabilities by Dicklesworthstone

    CVE-2026-77474 (GCVE-0-2026-77474)

    Vulnerability from nvd – Published: 2026-10-16 16:10 – Updated: 2026-10-19 12:38
    VLAI
    Title
    dcg: Exponential-time command-substitution preprocessing lets a crafted command hang dcg and bypass the guard via hook-timeout fail-open
    Summary
    destructive_command_guard (dcg) is a command-line safety tool that blocks destructive shell commands before AI coding agents run them. Prior to 0.6.6, nested or unclosed substitutions are recursively rescanned after an inner scan returns unterminated, producing exponential-time work. The affected scanners are reached through split_command_segments in src/packs/mod.rs. a destructive command followed by nested or unclosed $( or $(( sequences. nested or unclosed $( and $(( sequences cause repeated rescanning of the remaining command suffix. a hung PreToolUse hook fails open, allowing the destructive command to proceed. This issue is fixed in version 0.6.6.
    Severity
    7.1 (High)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-10-19 12:37 UTC
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    • CWE-407 - Inefficient Algorithmic Complexity
    • CWE-693 - Protection Mechanism Failure
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7614 records in the last 180 days details
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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    CVE-2026-77474 (GCVE-0-2026-77474)

    Vulnerability from cvelistv5 – Published: 2026-10-16 16:10 – Updated: 2026-10-19 12:38
    VLAI
    Title
    dcg: Exponential-time command-substitution preprocessing lets a crafted command hang dcg and bypass the guard via hook-timeout fail-open
    Summary
    destructive_command_guard (dcg) is a command-line safety tool that blocks destructive shell commands before AI coding agents run them. Prior to 0.6.6, nested or unclosed substitutions are recursively rescanned after an inner scan returns unterminated, producing exponential-time work. The affected scanners are reached through split_command_segments in src/packs/mod.rs. a destructive command followed by nested or unclosed $( or $(( sequences. nested or unclosed $( and $(( sequences cause repeated rescanning of the remaining command suffix. a hung PreToolUse hook fails open, allowing the destructive command to proceed. This issue is fixed in version 0.6.6.
    Severity
    7.1 (High)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-10-19 12:37 UTC
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    • CWE-407 - Inefficient Algorithmic Complexity
    • CWE-693 - Protection Mechanism Failure
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7614 records in the last 180 days details
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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