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    CVE-2026-66756

    Improper Protection of Alternate Path vulnerability in Apache Tika. This issue affects Apache Tika: from 4.0.0-alpha-1 before 4.0.0-beta-1. Users are recommended to upgrade to version 4.0.0-beta-1, which fixes the issue.

    Published:Jul 30, 2026
    Last Modified:Jul 30, 2026
    EPS:Jul 30, 2026
    EPSS Score:
    CVSS Score:6.9

    Affected Products

    Vendor
    Apache
    Product
    Tika

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-127 Directory Indexing
    CAPEC-554 Functionality Bypass

    Related CVEs

    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 …
    CVE-2020-9489 (CVSS 5.5) — A carefully crafted or corrupt file may trigger a System.exit in Tika's OneNote Parser. Crafted or corrupted f…

    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