CVE-2025-62708

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    CVE-2025-62708

    Published: 22 Oct 2025Last Modified: 10 Oct 2026

    Summary: pypdf manipulated LZWDecode streams can exhaust RAM

    Details: pypdf is a free and open-source pure-python PDF library. Prior to version 6.1.3, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing the content stream of a page using the LZWDecode filter. This has been fixed in pypdf version 6.1.3.

    References: https://github.com/py-pdf/pypdf/releases/tag/6.1.3, https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/62xxx/CVE-2025-62708.json, https://github.com/py-pdf/pypdf/security/advisories/GHSA-jfx9-29x2-rv3j, https://nvd.nist.gov/vuln/detail/CVE-2025-62708, https://github.com/py-pdf/pypdf/commit/e51d07807ffcdaf18077b9486dadb3dc05b368da, https://github.com/py-pdf/pypdf/pull/3502

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -4a613f3fbe7af8ef65bbae740ceabe35310db4ee

    Affected versions

    6.1.2
    6.1.1
    6.1.0

    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
    CVE-2025-62708 | CVE-DB