Detections
Analytics

SCA: security update for org.geysermc.geyser:core (GHSA-xcfg-fcr5-gw9r)

low Tenable Cloud Security Plugin ID 441248

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Geyser is a bridge between Minecraft: Bedrock Edition and Minecraft: Java Edition. Prior to 2.9.3, a
 server-side request forgery (SSRF) vulnerability exists in Geyser’s handling of Bedrock player head
 texture data. By supplying a crafted Base64-encoded skin texture URL via the /give command, an attacker
 can cause the Minecraft server to issue arbitrary HTTP GET requests to attacker-controlled or internal
 endpoints. This occurs server-side, without proper URL validation, and can be triggered by a Bedrock
 client. This vulnerability is fixed in 2.9.3. (CVE-2026-42188)

Solution

Update the org.geysermc.geyser:core library and its related packages to version 2.9.3 or later.

See Also

https://github.com/advisories/GHSA-xcfg-fcr5-gw9r

Plugin Details

Severity: Low

ID: 441248

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 5/6/2026

Updated: 6/30/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.4

Vector: CVSS2#AV:N/AC:L/Au:M/C:P/I:N/A:N

CVSS Score Source: CVE-2026-42188

CVSS v3

Risk Factor: Low

Base Score: 2.4

Temporal Score: 2.1

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/5/2026

Vulnerability Publication Date: 5/5/2026

Reference Information

CVE: CVE-2026-42188

cwe: CWE-918