go-ethereum/p2p
ozpool 45698e9cb9
p2p/nat: bump pion/stun to v3 to pull in fixed pion/dtls (#34980)
### Summary

Closes #34621.

`github.com/pion/dtls/v2` is affected by
[CVE-2026-26014](https://nvd.nist.gov/vuln/detail/CVE-2026-26014); the
fix lives in `github.com/pion/dtls/v3`. In this tree, dtls/v2 is pulled
in indirectly via `github.com/pion/stun/v2 v2.0.0` (declared at
`go.mod:53`), which is the only direct consumer — `p2p/nat/stun.go` is
the sole call site.

`github.com/pion/stun/v3` already uses dtls/v3, so bumping `stun`
upgrades the vulnerable dependency without touching `pion/dtls`
directly.

### API check

The v3 surface used by `p2p/nat/stun.go` is byte-identical in shape to
v2:

| Symbol | v2 | v3 |
|---|---|---|
| `Dial` | `func Dial(network, address string) (*Client, error)` | same
|
| `Build` | `func Build(setters ...Setter) (*Message, error)` | same |
| `TransactionID` | `var TransactionID Setter` | same |
| `BindingRequest` | `var BindingRequest = NewType(MethodBinding,
ClassRequest)` | same |
| `Event` | `type Event struct` | same |
| `XORMappedAddress` | `type XORMappedAddress struct { …
GetFrom(*Message) error }` | same |
| `DefaultPort` | `const DefaultPort = 3478` | same |

So the code change is just the import rename plus an alias rename to
keep the local label honest (`stunV2` → `stunV3`).

### Change

`go.mod` / `go.sum`:

- Replace direct `github.com/pion/stun/v2 v2.0.0` with
`github.com/pion/stun/v3 v3.0.1`.
- `go mod tidy` drops every `pion/dtls/v2` and `pion/stun/v2` entry from
`go.sum` and pulls `pion/dtls/v3 v3.0.7`, `pion/stun/v3 v3.0.1`,
`pion/transport/v3 v3.0.8` as the new indirect set.

`p2p/nat/stun.go`:

- Update the import path and rename the alias from `stunV2` to `stunV3`.

### Verification

- `go build ./p2p/nat/` clean.
- `go test ./p2p/nat/ -count=1` passes (26s).
- `grep 'pion/dtls/v2\|pion/stun/v2' go.sum` returns zero matches.

### Notes

- `pion/dtls` is not imported directly anywhere in the tree, so no other
code needs touching.
- `pion/transport/v3` was already in the dependency graph (the `stun/v3`
upgrade just bumps the patch from v3.0.1 → v3.0.8); the v2 transport
drops out cleanly.
2026-05-27 13:38:18 +02:00
..
discover p2p/discover: waitForNodes hangs on RespCount=0 from peer (#35043) 2026-05-26 14:18:47 +02:00
dnsdisc crypto/keccak: vendor in golang.org/x/crypto/sha3 (#33323) 2026-02-03 14:55:27 -07:00
enode crypto/keccak: vendor in golang.org/x/crypto/sha3 (#33323) 2026-02-03 14:55:27 -07:00
enr p2p/enode: add quic ENR entry (#30283) 2024-09-13 23:47:18 +02:00
msgrate p2p: using math.MaxInt32 from go std lib (#32357) 2025-08-20 16:22:21 -06:00
nat p2p/nat: bump pion/stun to v3 to pull in fixed pion/dtls (#34980) 2026-05-27 13:38:18 +02:00
netutil p2p: using testing.B.Loop (#32664) 2025-09-19 16:38:36 -06:00
pipes all: update license comments and AUTHORS (#31133) 2025-02-05 23:01:17 +01:00
rlpx crypto/keccak: vendor in golang.org/x/crypto/sha3 (#33323) 2026-02-03 14:55:27 -07:00
tracker p2p/tracker: fix crash in clean when tracker is stopped (#33940) 2026-03-03 12:54:24 +01:00
config.go p2p: update MaxPeers comment (#32414) 2025-08-19 20:14:11 +08:00
config_toml.go p2p: support configuring NAT in TOML file (#31041) 2025-01-22 09:29:34 +01:00
dial.go p2p: handle return false from TCPEndpoint (#34916) 2026-05-10 13:02:46 +02:00
dial_test.go p2p: track in-progress inbound node IDs (#33198) 2026-03-20 05:52:15 +01:00
message.go p2p: use atomic types (#27764) 2023-08-01 23:20:52 +02:00
message_test.go p2p: move rlpx into separate package (#21464) 2020-09-22 10:17:39 +02:00
metrics.go p2p: add metrics for inbound connection errors (#31652) 2025-05-07 15:34:52 +02:00
peer.go p2p: remove todo comment, as it's unnecessary (#32397) 2025-08-21 15:48:46 -06:00
peer_error.go p2p: fix DiscReason encoding/decoding (#30855) 2024-12-12 12:33:42 +01:00
peer_test.go p2p: DNS resolution for static nodes (#30822) 2024-12-13 12:46:12 +01:00
protocol.go all: use cmp.Compare (#30958) 2025-01-02 14:06:47 +01:00
server.go p2p: track in-progress inbound node IDs (#33198) 2026-03-20 05:52:15 +01:00
server_nat.go p2p/nat: fix UPnP port reset (#31566) 2025-04-09 11:28:29 +02:00
server_nat_test.go p2p: fix flaky test TestServerPortMapping (#30241) 2024-07-30 07:31:27 -06:00
server_test.go p2p: cleanup v4 if v5 failed (#33005) 2025-10-29 10:34:19 +01:00
transport.go p2p: fix DiscReason encoding/decoding (#30855) 2024-12-12 12:33:42 +01:00
transport_test.go p2p: fix DiscReason encoding/decoding (#30855) 2024-12-12 12:33:42 +01:00
util.go all: assign zero after resize in implementations of heap.Interface (#26296) 2022-12-05 13:49:54 +01:00
util_test.go p2p: new dial scheduler (#20592) 2020-02-13 11:10:03 +01:00