Golang Crypto — known CVE vulnerabilities

Every CVE whose affected-product data names Golang Crypto, ordered by CVSS severity, with EPSS exploit prediction and CISA KEV status.

CVEs (19)

• CVE-2026-46595 — CVSS 10.0 (critical): Previously, CVE-2024-45337 fixed an authorization bypass for misused ssh server configurations; if any other type of callback is passed…
• CVE-2026-42508 — CVSS 9.1 (critical): Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey'…
• CVE-2026-39830 — CVSS 9.1 (critical): A malicious SSH peer could send unsolicited global request responses to fill an internal buffer, blocking the connection's read loop. The…
• CVE-2026-39833 — CVSS 9.1 (critical): The in-memory keyring returned by NewKeyring() silently accepted keys with the ConfirmBeforeUse constraint but never enforced it. The key…
• CVE-2026-39832 — CVSS 9.1 (critical): When adding a key to a remote agent constraint extensions such as [email protected] were not serialized in the request…
• CVE-2026-39831 — CVSS 9.1 (critical): The Verify() method for FIDO/U2F security key types ([email protected], [email protected]) did not check the User…
• CVE-2026-39834 — CVSS 9.1 (critical): When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation…
• CVE-2017-3204 — CVSS 8.1 (high): The Go SSH library (x/crypto/ssh) by default does not verify host keys, facilitating man-in-the-middle attacks. Default behavior changed in…
• CVE-2026-39829 — CVSS 7.5 (high): The RSA and DSA public key parsers did not enforce size limits on key parameters. A crafted public key with an excessively large modulus or…
• CVE-2026-46597 — CVSS 7.5 (high): An incorrectly placed cast from bytes to int allowed for server-side panic in the AES-GCM packet decoder for well-crafted inputs.
• CVE-2026-39827 — CVSS 6.5 (medium): An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually…
• CVE-2026-39828 — CVSS 6.3 (medium): When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently…
• CVE-2023-48795 — CVSS 5.9 (medium): The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to…
• CVE-2019-11841 — CVSS 5.9 (medium): A message-forgery issue was discovered in crypto/openpgp/clearsign/clearsign.go in supplementary Go cryptography libraries 2019-03-25…
• CVE-2019-11840 — CVSS 5.9 (medium): An issue was discovered in the supplementary Go cryptography library, golang.org/x/crypto, before v0.0.0-20190320223903-b7391e95e576. A…
• CVE-2025-58181 — CVSS 5.3 (medium): SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker…
• CVE-2026-46598 — CVSS 5.3 (medium): For certain crafted inputs, a 'ed25519.PrivateKey' was created by casting malformed wire bytes, leading to a panic when used.
• CVE-2025-47914 — CVSS 5.3 (medium): SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the…
• CVE-2026-39835 — CVSS 5.3 (medium): SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a…