CVE-2026-19288Public exploit

Arbitrary file write via unchecked libraryId path

Published Aug 8, 2026 · Updated Aug 8, 2026

Path traversal in Astralis One Rive MCP Server - Core System allows local users to write files outside its manifest directory. The importRiveFile flow assigns a caller-controlled libraryId to library.id, then saveLibrary joins it into a filename without checking that the resolved path remains under manifestsPath. Invocation access to the MCP tool is required, and writes are limited to .library.json-suffixed paths permitted by the server process account.

CVSS severity5.3
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Path traversal in Astralis One Rive MCP Server - Core System allows local users to write files outside its manifest directory. The importRiveFile flow assigns a caller-controlled libraryId to library.id, then saveLibrary joins it into a filename without checking that the resolved path remains under manifestsPath. Invocation access to the MCP tool is required, and writes are limited to .library.json-suffixed paths permitted by the server process account.

The record

CVE
CVE-2026-19288
Published
Aug 8, 2026
Updated
Aug 8, 2026
Vendor
Astralis One
Product
Rive MCP Server - Core System
Classifications
CWE-22
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=db1d0cc4cd52589116360428b7504fd0ca748b3e

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Astralis One · Rive MCP Server - Core Systemversion=db1d0cc4cd52589116360428b7504fd0ca748b3e

Published CVSS scores

5.3TenableCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
4.8TenableCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
4.3TenableAV:L/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Path Traversal

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo