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26 May 2026

Vulnerabilities first published on this day (UTC), newest first.

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All Critical High Medium Low Exploited only Public exploit

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  • Medium 6.5
    CVE-2026-48710 Exploited Public exploit Scanner template EPSS 70%

    Starlette has missing Host header validation that poisons request.url.path, bypassing path-based security checks

    Starlette is a lightweight ASGI framework/toolkit. Prior to version 1.0.1, the HTTP `Host` request header was not validated before being used to reconstruct `request.url`. Because the routing algorithm relies on the raw HTTP path while `request.url` is rebuil…

    Kludex starlette starlette starlette Debian Ubuntu Alpine PyPI
    KEV Sep 2, 2026
  • Medium 5.9
    CVE-2026-44788 Public exploit

    SharpCompress: Directory traversal via directory entries in WriteToDirectory (zip slip variant)

    SharpCompress is a fully managed C# library to deal with many compression types and formats. In 0.47.4 and earlier, a path traversal vulnerability in IArchive.WriteToDirectory() allows a malicious archive to create directories outside the intended extraction …

    adamhathcock sharpcompress SharpCompress NuGet
  • Medium 6.5
    CVE-2026-40564 Public exploit

    Apache Flink Kubernetes Operator: Server-Side Request Forgery and local file access in Kubernetes Operator

    Files or Directories Accessible to External Parties, Server-Side Request Forgery (SSRF) vulnerability in Apache Flink Kubernetes Operator. The FlinkSessionJob jarURI is currently not validated so that it points to user-owned files or addresses.  This lets a u…

    Apache Software Foundation Apache Flink Kubernetes Operator
  • Medium 4.3
    CVE-2026-36239 Public exploit

    PbootCMS v.3.2.11 contains a code injection vulnerability in its site configuration functionality