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    2 vulnerabilities by PyMuPDF

    CVE-2026-120752 (GCVE-0-2026-120752)

    Vulnerability from cvelistv5 – Published: 2026-11-02 22:16 – Updated: 2026-11-07 02:27
    VLAI
    Title
    PyMuPDF 1.25.3 before 2.0 Stack Buffer Overflow via add_freetext_annot() Callout
    Summary
    PyMuPDF 1.25.3 before 2.0 contains a stack-based buffer overflow vulnerability in JM_set_annot_callout_line() that copies a caller-supplied number of callout points into a fixed three-element stack array. Attackers who control the callout argument passed to Page.add_freetext_annot() can supply four or more points to overwrite the stack frame, crashing the process or executing code.
    Severity
    7.7 (High)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    7.5 (High)
    CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-11-07 02:26 UTC
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    Assigner
    VulnCheck CNA
    References
    Impacted products
    Vendor Product Version
    PyMuPDF PyMuPDF Affected: 1.25.3 , < 2.0 (custom)
    		Create a notification for this product.
    Date Public
    2026-09-07 00:00
    Credits
    k3rn3lbr3ach3r Dilanka Kaushal Hewage (r3vpwnx)
    Show details on NVD website
    To clipboard 

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          "name": "PyMuPDF 2.0 Release Notes",
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    CVE-2026-82035 (GCVE-0-2026-82035)

    Vulnerability from cvelistv5 – Published: 2026-09-14 18:38 – Updated: 2026-09-14 19:11 X_Open Source
    VLAI
    Title
    PyMuPDF 1.28.2 Path Traversal via extract_objects() Font Branch
    Summary
    PyMuPDF through 1.28.2, fixed in commit b2c8f3a, contains a path traversal vulnerability in the font branch of extract_objects() in src/__main__.py, where the output filename is constructed by joining a document-controlled BaseFont name directly onto the user-supplied output directory without stripping path separators or dot-dot sequences. Attackers can supply a crafted PDF, EPUB, XPS, or FB2 file with a BaseFont name containing encoded path separators that decode to ../ sequences or absolute paths, causing arbitrary file writes outside the intended output directory without requiring authentication or elevated privileges.
    Severity
    7.1 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
    7.1 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-14 19:11 UTC
    CWE
    • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
    Assigner
    VulnCheck CNA
    References
    Impacted products
    Vendor Product Version
    PyMuPDF PyMuPDF Affected: 0 , ≤ 1.8.2 (semver)
    Unaffected: b2c8f3a859fed35c379a44df566f770dc3e18605 (git)
    		Create a notification for this product.
    Date Public
    2026-09-08 00:00
    Credits
    hayato1121 VulnCheck
    Show details on NVD website
    To clipboard 

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