CVE-2026-63458: Github.com/perses/perses Remote Code Execution Vulnerability

HIGH
Advisory Identifier: GHSA-cjgj-2fwf-4c2w
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CWE-639
Published
Advisory Summary

CVE-2026-63458 is a HIGH remote code execution vulnerability (CWE-639: Authorization Bypass Through User-Controlled Key) affecting Github.com/perses/perses libraries in the Go ecosystem. The issue involves perses's project query parameter authorization bypass exposes cross-project resources. Remediation is available by upgrading affected packages to version 0.54.0-beta.3.

CVE-2026-63458 at a Glance

CVE Identifier CVE-2026-63458
GHSA Identifier GHSA-cjgj-2fwf-4c2w
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-639: Authorization Bypass Through User-Controlled Key
Affected Product Github.com/perses/perses
Package Ecosystem Go
Published Date
Last Updated

How to Fix CVE-2026-63458

To remediate this vulnerability, upgrade all affected Github.com/perses/perses dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/perses/perses fixed: 0.54.0-beta.3 
Upgrade github.com/perses/perses to 0.54.0-beta.3
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/perses/perses

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-63458, inspect your project dependencies for Github.com/perses/perses:

inspect dependencies for github.com/perses/perses

Analyze the terminal output to locate any version of Github.com/perses/perses in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.54.0-beta.3), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-639: Authorization Bypass Through User-Controlled Key, where the system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. In Github.com/perses/perses, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact _What kind of vulnerability is it?_ An authenticated user who is only a viewer on project team-a requests GET /api/v1/projects/team-a/dashboards?project=finance-secret (or simply GET /api/v1/datasources?project=finance-secret) and receives the full list of the finance-secret project's dashboards and datasource specifications, despite having no role on that project. This defeats Perses' project-level tenant isolation for all project-scoped read resources. _Who is impacted?_ Any authenticated user reads every project's dashboards, datasources, variables across tenants. ### Patches _Has the problem been patched? What versions should users upgrade to?_ ### Workarounds None

CVE-2026-63458 Affected Github.com/perses/perses Versions

1 component(s)
Fixed Versions:
0.54.0-beta.3
Product / Package Ecosystem Affected Versions Fixed Version
github.com/perses/perses
golang/github.com/perses/perses
Go
< 0.54.0-beta.3
0.54.0-beta.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/perses/perses/security/advisories/GHSA-cjgj-2fwf-4c2w
Security Fix Commit FIX COMMIT
https://github.com/perses/perses/commit/8015fb340bdc625953e73a7a688be5b939159540
Github.com/perses/perses Source Repository REPOSITORY
https://github.com/perses/perses
Github.com/perses/perses Release RELEASE
https://github.com/perses/perses/releases/tag/v0.54.0-beta.3

Frequently Asked Questions

What is CVE-2026-63458?
CVE-2026-63458 is a security vulnerability in Github.com/perses/perses involving Perses's project query parameter authorization bypass exposes cross-project resources under CWE-639: Authorization Bypass Through User-Controlled Key.
Which Github.com/perses/perses versions are affected?
Affected versions include releases prior to 0.54.0-beta.3 across affected packages: github.com/perses/perses.
What version fixes CVE-2026-63458?
Upgrading to 0.54.0-beta.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/perses/perses affected?
Yes, github.com/perses/perses is affected in releases prior to 0.54.0-beta.3. Upgrade your dependency to 0.54.0-beta.3 or later.
What CWE is associated with CVE-2026-63458?
CVE-2026-63458 is classified under CWE-639: Authorization Bypass Through User-Controlled Key (The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.).
How can I check Go dependencies for CVE-2026-63458?
Run the dependency tree command: 'inspect dependencies for github.com/perses/perses'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-cjgj-2fwf-4c2w",
  "modified" : "2026-09-18T17:40:32Z",
  "published" : "2026-09-18T17:39:31Z",
  "aliases" : [ "CVE-2026-63458" ],
  "summary" : "Perses's project query parameter authorization bypass exposes cross-project resources",
  "details" : "### Impact\n_What kind of vulnerability is it?_\n\nAn authenticated user who is only a viewer on project team-a requests GET /api/v1/projects/team-a/dashboards?project=finance-secret (or simply GET /api/v1/datasources?project=finance-secret) and receives the full list of the finance-secret project's dashboards and datasource specifications, despite having no role on that project. This defeats Perses' project-level tenant isolation for all project-scoped read resources.\n\n_Who is impacted?_\n\nAny authenticated user reads every project's dashboards, datasources, variables across tenants.\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\n### Workarounds\nNone",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/perses/perses"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.54.0-beta.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/perses/perses/security/advisories/GHSA-cjgj-2fwf-4c2w"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/perses/perses/commit/8015fb340bdc625953e73a7a688be5b939159540"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/perses/perses"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/perses/perses/releases/tag/v0.54.0-beta.3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-639" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-09-18T17:39:31Z",
    "nvd_published_at" : null
  }
}