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    2 vulnerabilities by Blue-B

    CVE-2026-31827 (GCVE-0-2026-31827)

    Vulnerability from nvd – Published: 2026-03-10 21:39 – Updated: 2026-03-11 15:59
    VLAI
    Title
    Alienbin: TTL Index Race Condition allows unauthorized deletion of other users data
    Summary
    Alienbin is an anonymous code and text sharing web service. In 1.0.0 and earlier, the /save endpoint in server.js drops and recreates the MongoDB TTL index on the entire post collection for every new paste submission. When User B submits a paste with a short TTL (e.g., 30 seconds), the TTL index is recreated with expireAfterSeconds: 30 for all documents in the collection. This causes User A's paste (originally set to 7 days) to be deleted after 30 seconds. An attacker can intentionally delete all existing pastes by repeatedly submitting pastes with ttlOption=30s.
    Severity
    7.1 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
    Assigner
    References
    Impacted products
    Vendor Product Version
    Blue-B Alienbin Affected: <= 1.0.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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          "shortName": "CISA-ADP"
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    CVE-2026-31827 (GCVE-0-2026-31827)

    Vulnerability from cvelistv5 – Published: 2026-03-10 21:39 – Updated: 2026-03-11 15:59
    VLAI
    Title
    Alienbin: TTL Index Race Condition allows unauthorized deletion of other users data
    Summary
    Alienbin is an anonymous code and text sharing web service. In 1.0.0 and earlier, the /save endpoint in server.js drops and recreates the MongoDB TTL index on the entire post collection for every new paste submission. When User B submits a paste with a short TTL (e.g., 30 seconds), the TTL index is recreated with expireAfterSeconds: 30 for all documents in the collection. This causes User A's paste (originally set to 7 days) to be deleted after 30 seconds. An attacker can intentionally delete all existing pastes by repeatedly submitting pastes with ttlOption=30s.
    Severity
    7.1 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
    Assigner
    References
    Impacted products
    Vendor Product Version
    Blue-B Alienbin Affected: <= 1.0.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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