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CVE-2026-63458

Perses project query parameter authorization bypass exposes cross-project resources

HIGH
7.1
CVSS Score
Published: September 18, 2026 at 05:32 PM UTC
Updated: September 23, 2026 at 06:30 PM UTC
1 product affected across 1 vendorPerses

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Severity
HIGH7.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Perses is an open-source dashboard and visualization project for observability data. Prior to 0.54.0-beta.3, an authenticated user with viewer access to one project can supply another project through the project query parameter on project-scoped list endpoints, including /api/v1/projects/{project}/dashboards and /api/v1/datasources. The request-controlled project value is used to select dashboards, datasources, and variables without enforcing the caller's authorization for that selected project, which breaks project-level tenant isolation and exposes complete resource specifications belonging to other projects. This issue is fixed in version 0.54.0-beta.3.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Perses· Perses
60%
v < 0.54.0-beta.3
Affected range stops below 0.54.0-beta.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

x_refsource_CONFIRM
Source: cverecord
https://github.com/perses/perses/security/advisories/GHSA-cjgj-2fwf-4c2w
x_refsource_MISC
Source: cverecord
https://github.com/perses/perses/commit/8015fb340bdc625953e73a7a688be5b939159540
x_refsource_MISC
Source: cverecord
https://github.com/perses/perses/releases/tag/v0.54.0-beta.3

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHGitHub_M
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-639

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