CRITICALpublic-safe

CVE-2026-54617

NVD: GravitLauncher is an open-source Minecraft launcher based on sashok724's v3. NVD: Prior to 5.7.12, an unauthenticated remote actor can send a raw HTTP request target without a leading slash to the default LaunchServer file server on port 9274. NVD: FileServerHandler.channelRead0 in components/launchserver/src/main/java/pro/gravit/launchserver/socket/handlers/fileserver/FileServerHandler.java strips the first request-target character and resolves the remaining path against updatesDir without...

CVSS
9.8 Severity
CRITICAL EPSS
0.0109 (64) KEV
-

Source-published summary

Possible impact

Source describes authentication boundary review · path traversal review. Possible impact: An attacker may be able to reach files outside the intended application path.

Affected context

Affected product or version requires source confirmation.

Remediation / advisory

Patch confirmed by source text; fixed version context: 5.7.12..

Why it matters

Source describes authentication boundary review · path traversal review. Possible impact: An attacker may be able to reach files outside the intended application path.; CVSS 9.8 (CRITICAL); EPSS percentile 64; not listed in KEV; Patch confirmed by source text; fixed version context: 5.7.12; sources: NVD, OSV.

What to verify

Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.

Exposure hint

exposure unknown

Impact tags

authentication boundary reviewpath traversal review

Urgency reasons

CVSS CRITICALvendor advisory presentrecent updateremediation reference present

Source-derived note

Summary derived from NVD / OSV description; unsafe procedural detail is not shown.

Redaction metadata

source summary used: True
fallback summary used: False
unsafe procedural detail present: false
raw source displayed: false
public summary redacted: true

Remediation handoff

Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.

Handoff JSON Handoff Markdown Safe Codex prompt

Safety note

This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.