Vulnerability · Published Sep 18, 2026 · Assigned by GitHub_M

CVE-2026-63445Perses: Unvalidated project parameter enables filesystem path traversal

High 7.1

In plain English

A high-severity path traversal in perses from perses. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)7.1High

Exploit odds (30 days)0.6%top 53.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/perses/perses	0.54.0-rc.0	GHSA-vr5f-w35q-98jp
Go	github.com/perses/perses	0.54.0-rc.0	GO-2026-6528

Affected products (as reported)

Vendor	Product	Versions
perses	perses	< 0.54.0-rc.0

Weakness: CWE-22 · Vector: 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

References

https://github.com/perses/perses/security/advisories/GHSA-vr5f-w35q-98jp x_refsource_CONFIRM
https://github.com/perses/perses/commit/75e5471040ccb5674ea8d25c2aa16c80ccb70b2a x_refsource_MISC
https://github.com/perses/perses/releases/tag/v0.54.0-rc.0 x_refsource_MISC