These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-28T16:18:17.607Z and has not been modified since then. The NVD entry is currently Awaiting Analysis. The source-address critical option in authentication callbacks was not enforced for certain callbacks in the Go project, potentially allowing unauthorized access. This vulnerability has been addresse [truncated]
CVE-2026-46598 is a Go security issue where certain crafted inputs could cause an ed25519.PrivateKey to be created by casting malformed wire bytes. When that malformed key is later used, it can panic. The practical security impact is service instability and potential denial of service in software that accepts or processes untrusted Ed25519 private key material.
CVE-2026-46597 is a Go security issue involving the AES-GCM packet decoder. A misplaced cast from bytes to int can cause a server-side panic when processing well-crafted inputs, which makes the main defensive concern denial of service rather than data exposure based on the available corpus. The public record and Go security references point to an official fix track, but the supplied source set does not in [truncated]
A critical vulnerability was found in golang.org/x/crypto/ssh, allowing for authorization bypass in certain misconfigured SSH server setups. This issue was previously addressed as CVE-2024-45337 but could still be exploited under specific conditions. The vulnerability arises when an incorrect type of callback is used, leading to the skipping of source-address validation.
A critical vulnerability was found in golang.org/x/crypto/ssh/knownhosts, allowing for potential security risks due to incorrect revocation checks for 'SignatureKey' belonging to a CA. The issue is resolved by checking both the 'key' and 'key.SignatureKey' for revocation. Defenders should verify the revocation status of 'SignatureKey' and update to the latest version to prevent potential security risks. T [truncated]
CVE-2026-39835 is a medium-severity vulnerability affecting the golang.org/x/crypto/ssh package. The vulnerability occurs when an SSH server uses CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority, allowing a client to cause a panic by presenting a certificate. The CertChecker now returns an error instead of panicking when these callbacks are nil.
CVE-2026-39834 describes an integer overflow in Go SSH channel payload size handling. When a single Write call exceeds 4GB, the internal size calculation can truncate, causing the write loop to spin indefinitely and send empty packets without making progress. The published Go references indicate the fix changes the size comparison to int64 to avoid truncation.
CVE-2026-39833 describes a security constraint enforcement flaw in Go's in-memory keyring. A key created through NewKeyring() could accept the ConfirmBeforeUse constraint yet still sign without any confirmation prompt, and callers were not told the constraint was ineffective. The fix changes NewKeyring() to return an error when unsupported constraints are requested.
CVE-2026-39831 is a user-presence enforcement flaw in Go’s FIDO/U2F security key verification path. According to the CVE description, the Verify() method for [email protected] and [email protected] did not check the User Presence flag, so signatures generated without physical touch could still be accepted. The Go security advisory references a fix that restores the previous behav [truncated]
A resource leak vulnerability in the Go crypto/ssh package could allow a malicious SSH peer to block the connection's read loop, preventing the goroutine from being released even after calling Close(). The vulnerability occurs when an SSH peer sends unsolicited global request responses, filling an internal buffer and blocking the read loop. This issue has been addressed by discarding unsolicited global re [truncated]
CVE-2026-39829 is a high-severity vulnerability affecting the RSA and DSA public key parsers in the golang.org/x/crypto/ssh package. The vulnerability allows for a crafted public key with an excessively large modulus or DSA parameter to cause several minutes of CPU consumption during signature verification. This can be triggered by unauthenticated clients during public key authentication. The issue has be [truncated]
A vulnerability in the golang.org/x/crypto/ssh package could allow an attacker to potentially drop certificate restrictions, such as force-command, after a second factor succeeded. This issue occurs when an SSH server authentication callback returns PartialSuccessError with non-nil Permissions, causing those permissions to be silently discarded. The vulnerability affects SSH server configurations, particu [truncated]
CVE-2026-39827 describes an availability issue in Go-related SSH handling where an authenticated SSH client can repeatedly open channels that the server rejects, causing unbounded memory growth until the server process crashes. The issue is fixed by ensuring rejected channels are removed from internal connection state and released for garbage collection. Because the impact can take down a shared server pr [truncated]
