CVE-2026-86100

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    CVE-2026-86100

    Published: 4 Sept 2026Last Modified: 10 Sept 2026

    Summary: Camaleon CMS 2.7.5 through 2.9.1 SSRF via HTTP Redirect in Upload from URL

    Details: Camaleon CMS versions 2.7.5 through 2.9.1 fail to validate redirect targets when fetching remote files in the Upload from URL media feature. Authenticated attackers can supply URLs that pass initial validation but redirect to internal network addresses, allowing server-side request forgery to internal services.

    References: https://rubygems.org/gems/camaleon_cms, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86100.json, https://github.com/owen2345/camaleon-cms/releases/tag/2.9.2, https://nvd.nist.gov/vuln/detail/CVE-2026-86100, https://www.vulncheck.com/advisories/camaleon-cms-2.7.5-through-2.9.1-ssrf-via-http-redirect-in-upload-from-url, https://github.com/owen2345/camaleon-cms/commit/3c46b6e512518ded476226162305c8eae00aac3f, https://github.com/owen2345/camaleon-cms/pull/1133, https://github.com/owen2345/camaleon-cms, https://github.com/owen2345/camaleon-cms/blob/2.9.1/app/helpers/camaleon_cms/uploader_helper.rb

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 71c864d2ba8372339aa6b39e6cdee216587406fc
    Fixed -45c15c72bf415015322512bc1f8069bdff240dd4

    Affected versions

    2.9.1
    2.9.0

    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-2026-86100 | CVE-DB