# NousResearch/hermes-agent · Twilio SMS webhook signature validation security issue

## Open now

- Nothing open on GitHub.

A reported vulnerability and multiple proposed fixes concern missing validation of the X-Twilio-Signature header on inbound SMS webhooks. The lack of validation was identified as enabling unauthenticated remote code execution.

## TL;DR

- 6 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 4 PR(s) closed without merging.
- A fix was merged to main in PR #7933. Verify it addresses your case.
- **Recommended:** read PR #7933 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `resolved` · deciding PR(s): `pr-7933`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.33`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Closed / duplicate issues

- #7089: \[Bug\]: Unauthenticated Remote Code Execution via SMS Webhook — Missing Twilio Signature Validation

## Prior & competing PRs

- **#7933: fix(security): add Twilio webhook signature validation (SMS RCE fix)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `gateway/platforms/sms.py`, `tests/gateway/test_sms.py`, `website/docs/reference/environment-variables.md`, `website/docs/user-guide/messaging/sms.md`
- **#7121: fix(sms): validate X-Twilio-Signature on inbound webhooks**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `#7933`
- **#7162: fix(security): validate Twilio signature in SMS webhook (RCE fix for #7089)**. closed without merge
  - maintainer direction: category `silent_close`; implication `active`
- **#7223: fix(security): validate Twilio signature in SMS webhook (RCE fix for #7089)**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `#7933`
- **#7904: fix(security): add Twilio webhook signature validation to prevent unauthenticated RCE**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#7933`

## Fix status

- Merged to main in PR #7933 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-04-11`. This confirmation is old and may be out of date (a revert/reopen would not have invalidated it here); re-verify.