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Go package

github.com/jub0bs/fcors

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Open advisories

1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. Critical, CVSS 9.3GoPublished

    Some CORS middleware allow untrusted origins

    GHSA-v84h-653v-4pq9

    Affected
    • Go github.com/jub0bs/fcors <= 0.8.0
    Fixed in
    0.9.0· Vendor fix available
    Issue
    Impact Some CORS middleware (more specifically those created by specifying two or more origin patterns whose hosts share a proper suffix) incorrectly allow some untrusted origins, thereby opening the door to cross-origin attacks from the untrusted origins in question. For example, specifying origin patterns https://foo.com and https://bar.com (in that order) would yield a middleware that would incorrectly allow untrusted origin https://barfoo.com. Patches Patched in v0.9.0. Workarounds None.

    Recommended action: Upgrade to 0.9.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →