Perses: Unvalidated project parameter enables filesystem path traversal (CVE-2026-63445) | HOL Guard CVE

High · CVSS 0.0CVE-2026-63445GHSA-VR5F-W35Q-98JP

Perses: Unvalidated project parameter enables filesystem path traversal

Answer in brief

CVE-2026-63445 records a High severity (CVSS 0.0) vulnerability in Perses: Unvalidated project parameter enables filesystem path traversal. The current sources do not mark it as known exploited. The current feed maps perses/perses (generic), github.com/perses/perses (go). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 18, 2026Updated Sep 18, 2026Source checked Sep 18, 2026First seen by HOL Sep 18, 2026Material review Sep 18, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 0.0
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 0.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps perses/perses (generic), github.com/perses/perses (go). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
perses/persesgeneric	< 0.54.0-rc.0	Not reported
github.com/perses/persesgo	<0.54.0-rc.0	0.54.0-rc.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for perses/perses, github.com/perses/perses.
Review the reported fix. Update github.com/perses/perses to 0.54.0-rc.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 18, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 18, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 18, 2026

Sources and claim methodology

Upstream source description

Perses is an open-source dashboard and visualization project for observability data. Prior to 0.54.0-rc.0, list endpoints used with the file-system database bind the request-controlled project query parameter into the resource Query structure without validating it against directory traversal characters, and the resulting project value is used to select database paths. An authenticated attacker can supply directory traversal segments to leave the intended project directory, read arbitrary YAML or JSON files accessible to the Perses process, and bypass project isolation to enumerate other file-backed resources. This issue is fixed in version 0.54.0-rc.0.

Quoted source text, attributed separately from HOL analysis.