## Summary
Follow-up to #20876. That PR bumped `esbuild` to `^0.27.3` to address
the Go-stdlib CVEs the self-hoster reported, but only one of the two Go
CVEs is actually fixed at that level. This PR closes the remaining gap.
### Why 0.27.3 wasn't enough
`esbuild` ships a Go-built binary inside the `@esbuild/<platform>`
packages. The vulnerability lives in the bundled Go toolchain, not in
any JavaScript. Verified by reading the Go `buildinfo` section from
`node_modules/@esbuild/<platform>/bin/esbuild`:
- `esbuild@0.27.7` → built with **Go 1.23.8**
- `esbuild@0.28.0` → built with **Go 1.26.1**
CVE-2024-24790 (IPv6 zone parsing) is fixed in Go 1.21.11 / 1.22.4, so
0.27.x covers it.
**CVE-2025-68121** (crypto/tls cert validation bypass via TLS session
resumption, **CVSS 10.0 / Critical** per
[NVD](https://nvd.nist.gov/vuln/detail/cve-2025-68121)) is fixed only in
Go 1.24.13, 1.25.7, and 1.26.0-rc.3+. Go 1.23.x is past Go's support
window and will not receive this fix. So `esbuild@0.27.x` still ships a
Go binary that Trivy correctly flags as vulnerable.
### Reachable risk in Twenty
Low. `esbuild` does not use `crypto/tls` at runtime — it reads files,
parses, transforms, and writes. The vulnerable code path is dead code
inside the binary, present but never executed. The scan finding is what
we are clearing, not an exploitation risk.
### Fix
Bump `twenty-client-sdk`'s `esbuild` from `^0.27.3` to `^0.28.0`
(resolves to 0.28.0, built with Go 1.26.1).
### Verification
Ran `yarn workspaces focus --production twenty twenty-server
twenty-emails twenty-shared twenty-client-sdk` (the same install the
Dockerfile uses) and confirmed:
- `node_modules/esbuild/` resolves to `esbuild@0.28.0` (single copy)
- The bundled `node_modules/@esbuild/<platform>/bin/esbuild` binary
reports `go1.26.1` in its `buildinfo`
## Test plan
- [x] `nx typecheck twenty-server` passes
- [x] `nx build twenty-client-sdk` passes (esbuild's `build()` API is
stable across 0.27 → 0.28)
- [x] Production focus install shows Go 1.26.1 in the shipped binary
- [ ] CI green
- [ ] Re-run Trivy against the resulting image; confirm CVE-2025-68121
no longer appears
