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.
CVE-2026-63445
This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.8%, top 46% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.1
- EG Score
- 7.1(medium)
- EG Risk
- 32(Track)EG Risk 32/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity71% × 45%Exploitation1% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 54%
- KEV
- Not listed
Published
September 18, 2026
Last Modified
September 24, 2026
Advisory Details (3)
Auto-updated Sep 18, 20260.54.0-rc.0 / 2026-07-16
Patch available: perses/perses v0.54.0-rc.0 (pre-release)
https://github.com/perses/perses/releases/tag/v0.54.0-rc.0commit 75e5471040cc (perses/perses)
Fix landed in perses/perses commit 75e5471040cc — awaiting tagged release
https://github.com/perses/perses/commit/75e5471040ccb5674ea8d25c2aa16c80ccb70b2aUnvalidated project parameter enables filesystem path traversal · Advisory · perses/perses · GitHub
https://github.com/perses/perses/security/advisories/GHSA-vr5f-w35q-98jpVendor Advisories for CVE-2026-63445(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/perses/perses | — | 0.54.0-rc.0 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 12× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-24 21:38 UTCEG score recompute
- 2026-09-23 22:17 UTCEG score recompute
- 2026-09-23 17:54 UTCEPSS rescore
- 2026-09-22 21:32 UTCEG score recompute
- 2026-09-22 09:10 UTCEG score recompute
- 2026-09-21 08:24 UTCEG score recompute
- 2026-09-20 20:16 UTCEPSS rescore
- 2026-09-19 19:12 UTCEG score recompute
- 2026-09-18 18:27 UTCEG score recompute
- 2026-09-18 18:15 UTCEG score recompute
- 2026-09-18 17:44 UTCEG score recompute
- 2026-09-18 17:44 UTCMITRE cvelistV5first tracked
Related CVEs(same product + same CWE)
Frequently asked(5)
What is CVE-2026-63445?
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Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-63445
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