build(deps): bump russh-cryptovec from 0.59.0 to 0.61.0 in the cargo group across 0 directory

[dependabot]

Updates russh-cryptovec from 0.59.0 to 0.61.0

Release notes

Sourced from russh-cryptovec's releases.

v0.61.0

Changes

• 32fd46f: Reduce russh write-path copies with direct Bytes sends (#695) (Mika Cohen) #695

  • New APIs allow zero-copy writes into channels:
    • Channel::data_bytes
    • Channel::extended_data_bytes
    • ChannelWriteHalf::data_bytes
    • ChannelWriteHalf::extended_data_bytes

• deps: migrate to stable versions pkcs5 / pkcs8 / ed25519 and loosen prerelease pins (extends #697) (#702) #702 (escapecode)

• 72b250a: migrate to upstream ssh-key crate and update RustCrypto crates (#709) (Eugene) #709

Security fixes

Part of the hardening efforts by @​mjc

GHSA-hpv4-5h6f-wqr3

• When a client changed their username between authentication requests, russh server implementation would not correctly reset its internal state (allowed methods and "partial success" state), which could lead to incorrect responses to the client.
  • Note that you still need to handle the case where the client sends a subsequent authentication request with a different username and reset any accumulated authentication state your application might have

GHSA-g9g7-5cgw-6v28

• When a client sent a keyboard-interactive authentication request, the prompt counter was used to directly allocate memory without verifying it, which can lead to denial of service.

GHSA-76r6-x97p-67vr

• russh server did not enfore the SSH protocol header validation strictly enough, allowing a client to hold the connection open indefinitely, wasting resources.

GHSA-4r3c-5hpg-58qr

• "Name list" fields such as algorithm lists were only bounded by the packet size. While the SSH protocol does not impose a limit, in practice it could allow a client to waste resources by spamming huge KEXINIT messages via multiple connections.

Fixes

• 4186cf2: Refactor block-cipher packet-length probing to avoid unsafe state duplication (#706) (Mika Cohen) #706
• reject trailing KEX and channel-open payloads (Mika Cohen)
• reject trailing encrypted message payloads (Mika Cohen)

v0.60.3

Security fixes

CVE-2026-46673

• a2d48a7 (Mika Cohen)

When compression is negotiated, an attacker can craft a "ZIP bomb" style packet that would bypass the maximum packet size checks. This could allow the attacker to hit the OOM limit and either get the server process killed by the OS, or, prior to russh@0.58.0, aborted. A similar issue existed in the AgentClient as well, which could be triggered by a malformed SSH agent response.

v0.60.2

Changes

... (truncated)

Commits

• 1947d6b v0.61.0
• 22295fa Merge commit from fork
• 311f6cf Merge commit from fork
• b14354e Merge commit from fork
• 72b250a Migrate to upstream ssh-key and update crypto crates (#709)
• fc6e3ab transport: reject trailing encrypted message payloads
• b0961ad parser: reject trailing KEX and channel-open payloads
• 32fd46f Reduce russh write-path copies with direct Bytes sends (#695)
• 4186cf2 Refactor block-cipher packet-length probing to avoid unsafe state duplication...
• 63674d9 fix(deps): migrate to stable pkcs5 / pkcs8 / ed25519 and loosen prerelease pi...
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