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    4 vulnerabilities by yacy

    CVE-2026-82880 (GCVE-0-2026-82880)

    Vulnerability from nvd – Published: 2026-08-31 10:51 – Updated: 2026-08-31 14:18
    VLAI
    Title
    YaCy Search Server through 1.941 XML External Entity Injection via Parsers
    Summary
    YaCy Search Server through 1.941 contains an XML external entity injection vulnerability in SVG, FreeMind, and OpenSearch parsers that fail to disable external entity resolution. Attackers can publish malicious documents with DOCTYPE declarations containing SYSTEM entities pointing to local files, causing the crawler to exfiltrate file contents into the searchable index.
    Severity
    8.7 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-31 14:17 UTC
    CWE
    • CWE-611 - Improper Restriction of XML External Entity Reference
    Assigner
    References
    Impacted products
    Vendor Product Version
    yacy yacy_search_server Affected: 0 , ≤ 1.941 (custom)
    Unaffected: 3c3a307e8b7a0ebbc4d1e6b10898b52e15c0cd44 (git)
    		Create a notification for this product.
    Date Public
    2026-08-22 00:00
    Credits
    Yu Sun
    Show details on NVD website
    To clipboard 

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    CVE-2026-24824 (GCVE-0-2026-24824)

    Vulnerability from nvd – Published: 2026-01-27 09:01 – Updated: 2026-01-27 16:58
    VLAI
    Title
    A XSS in yacy/yacy_search_server
    Summary
    Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in yacy yacy_search_server (source/net/yacy/http/servlets modules). This vulnerability is associated with program files YaCyDefaultServlet.Java. This issue affects yacy_search_server.
    Severity
    6.9 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/AU:Y/R:U/V:D/RE:M/U:Amber
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-01-27 16:58 UTC
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
    Assigner
    References
    Impacted products
    Vendor Product Version
    yacy yacy_search_server Affected: 0 , ≤ 1.92 (git)
    		Create a notification for this product.
    Credits
    TITAN Team (titancaproject@gmail.com)
    Show details on NVD website
    To clipboard 

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    CVE-2026-82880 (GCVE-0-2026-82880)

    Vulnerability from cvelistv5 – Published: 2026-08-31 10:51 – Updated: 2026-08-31 14:18
    VLAI
    Title
    YaCy Search Server through 1.941 XML External Entity Injection via Parsers
    Summary
    YaCy Search Server through 1.941 contains an XML external entity injection vulnerability in SVG, FreeMind, and OpenSearch parsers that fail to disable external entity resolution. Attackers can publish malicious documents with DOCTYPE declarations containing SYSTEM entities pointing to local files, causing the crawler to exfiltrate file contents into the searchable index.
    Severity
    8.7 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-31 14:17 UTC
    CWE
    • CWE-611 - Improper Restriction of XML External Entity Reference
    Assigner
    References
    Impacted products
    Vendor Product Version
    yacy yacy_search_server Affected: 0 , ≤ 1.941 (custom)
    Unaffected: 3c3a307e8b7a0ebbc4d1e6b10898b52e15c0cd44 (git)
    		Create a notification for this product.
    Date Public
    2026-08-22 00:00
    Credits
    Yu Sun
    Show details on NVD website
    To clipboard 

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    CVE-2026-24824 (GCVE-0-2026-24824)

    Vulnerability from cvelistv5 – Published: 2026-01-27 09:01 – Updated: 2026-01-27 16:58
    VLAI
    Title
    A XSS in yacy/yacy_search_server
    Summary
    Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in yacy yacy_search_server (source/net/yacy/http/servlets modules). This vulnerability is associated with program files YaCyDefaultServlet.Java. This issue affects yacy_search_server.
    Severity
    6.9 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/AU:Y/R:U/V:D/RE:M/U:Amber
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-01-27 16:58 UTC
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
    Assigner
    References
    Impacted products
    Vendor Product Version
    yacy yacy_search_server Affected: 0 , ≤ 1.92 (git)
    		Create a notification for this product.
    Credits
    TITAN Team (titancaproject@gmail.com)
    Show details on NVD website
    To clipboard 

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