Security advisories

Publish or withdraw a security advisory

Publish a draft (state published), withdraw a published advisory (state withdrawn), or publish a withdrawn one again.

POST/repos/{owner}/{name}/security/advisories/{id}/state

Publishing needs a description, tells webhooks (security_advisory.published) and the repository’s watchers who chose security alerts, and makes the advisory visible to anyone who can see the repository. Admin, or a security manager.

Publishing a draft with no description is 422. Publishing sends security_advisory.published to webhooks and tells the repository’s watchers who chose security alerts; withdrawing (state withdrawn) sends security_advisory.withdrawn. A withdrawn advisory can be published again. Asking for the state it already has is 409.

Authentication: Required. Send an access token as Authorization: Bearer.
MCP tool: security with action set_advisory_state, and the same inputs
Scope: An access token needs security:write.

Path parameters

Name	Type	Required	Description
`owner`	string	Yes	The workspace that owns the repository.
`name`	string	Yes	The repository’s name.
`id`	string	Yes	The advisory’s id: adv_…, or its G1TSA-… id.

Body parameters

Send a JSON object. Names are snake_case, as in responses; the camelCase spelling is accepted too.

Name	Type	Required	Description
`state`	string	Yes	published to publish (or publish again), withdrawn to withdraw. One of `published`, `withdrawn`.

Example request

curl -X POST https://api.g1t.sh/repos/flagon-io/hello/security/advisories/adv_01kq2p9f6g7h8j9k0m1n2p3q4r/state \
  -H "Authorization: Bearer $G1T_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "state": "published"
  }'

Example response

A successful request answers 200 with:

{
  "id": "adv_01kq2p9f6g7h8j9k0m1n2p3q4r",
  "g1tsa_id": "G1TSA-2026-h7kd-3mqw",
  "repo_id": "rep_01kq2p9f6g7h8j9k0m1n2p3q4r",
  "repo": "flagon-io/hello",
  "title": "Path traversal in the archive reader",
  "description": "A crafted archive could write outside the directory it is extracted to.",
  "severity": "high",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
  "cvss_score": 8.1,
  "cve_id": "CVE-2026-12345",
  "ecosystem": "npm",
  "package": "@flagon/hello",
  "affected_versions": ">= 1.2.0, < 1.4.1",
  "patched_versions": ">= 1.4.1",
  "state": "published",
  "credits": [
    "ana"
  ],
  "report_id": null,
  "created_by": "syntaqx",
  "created_at": "2026-10-06T09:14:02.118Z",
  "updated_at": "2026-10-07T15:02:40.000Z",
  "published_at": "2026-10-07T15:02:40.000Z",
  "withdrawn_at": null
}

Errors

A failed request answers with one of these statuses and a body like {"error": {"code": "not_found", "message": "Repository not found."}}. See errors.

Status	Code	When
401	`unauthenticated`	A token is required, or the one sent is not valid.
403	`forbidden`	The token is valid but not allowed to do this, such as a member-only change or an agent token outside its repository.
404	`not_found`	It does not exist, or you cannot see it.
409	`conflict`	The request conflicts with the current state.
422	`invalid`	The input is not valid. `message` says which field and why.