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    CVE-2018-11761

    In Apache Tika 0.1 to 1.18, the XML parsers were not configured to limit entity expansion. They were therefore vulnerable to an entity expansion vulnerability which can lead to a denial of service attack.

    Published:Sep 19, 2018
    Last Modified:Nov 21, 2024
    EPS:Sep 19, 2018
    EPSS Score:0.12926
    CVSS Score:7.5

    Affected Products

    Vendor
    Apache
    Product
    Tika
    Vendor
    Oracle
    Product
    Business Process Management Suite

    Exploits

    https://github.com/brianwrf/CVE-2018-11761

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-197 Exponential Data Expansion
    CAPEC-221 Data Serialization External Entities Blowup

    Related CVEs

    CVE-2026-66756 (CVSS 6.9) — Improper Protection of Alternate Path vulnerability in Apache Tika. This issue affects Apache Tika: from 4.0.…
    CVE-2026-66755 (CVSS 5.9) — Relative Path Traversal in the ISA-Tab parser in Apache Software Foundation Apache Tika from 1.8 through 3.3.1…
    CVE-2025-66516 (CVSS 8.4) — Critical XXE in Apache Tika tika-core (1.13-3.2.1), tika-pdf-module (2.0.0-3.2.1) and tika-parsers (1.13-1.28.…
    CVE-2025-54988 (CVSS 8.4) — Critical XXE in Apache Tika (tika-parser-pdf-module) in Apache Tika 1.13 through and including 3.2.1 on all pl…
    CVE-2022-33879 (CVSS 3.3) — The initial fixes in CVE-2022-30126 and CVE-2022-30973 for regexes in the StandardsExtractingContentHandler we…
    CVE-2022-30973 (CVSS 5.5) — We failed to apply the fix for CVE-2022-30126 to the 1.x branch in the 1.28.2 release. In Apache Tika, a regul…
    CVE-2022-25169 (CVSS 5.5) — The BPG parser in versions of Apache Tika before 1.28.2 and 2.4.0 may allocate an unreasonable amount of memor…
    CVE-2022-30126 (CVSS 5.5) — In Apache Tika, a regular expression in our StandardsText class, used by the StandardsExtractingContentHandler…
    CVE-2021-33813 (CVSS 7.5) — An XXE issue in SAXBuilder in JDOM through 2.0.6 allows attackers to cause a denial of service via a crafted H…
    CVE-2021-28657 (CVSS 5.5) — A carefully crafted or corrupt file may trigger an infinite loop in Tika's MP3Parser up to and including Tika …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High