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CVE-2025-30258 In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a "verification DoS."

UnknownApr 15, 2026(28 days ago)

A vulnerability in GnuPG before 2.5.5 can cause a denial of service (DoS) affecting signature verification due to crafted subkey data.

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