CVE-2023-37261Network attack vector

Internal data disclosure via permissive address filtering

Published Jul 7, 2023 · Updated Oct 18, 2024

SSRF in the Internet Card in MightyPirates OpenComputers before 1.8.3 allows remote authenticated users to read internal data via crafted URLs. AddressValidator applies IPv4-only CIDR checks and explicitly passes IPv6 destinations, while the default IPv4 blacklist omits cloud metadata endpoints. A player with access to an Internet Card can request private services and retrieve secrets or cloud credentials exposed to the Minecraft server.

CVSS severity9.6
Critical
EPSS probability0.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in the Internet Card in MightyPirates OpenComputers before 1.8.3 allows remote authenticated users to read internal data via crafted URLs. AddressValidator applies IPv4-only CIDR checks and explicitly passes IPv6 destinations, while the default IPv4 blacklist omits cloud metadata endpoints. A player with access to an Internet Card can request private services and retrieve secrets or cloud credentials exposed to the Minecraft server.

The record

CVE
CVE-2023-37261
Published
Jul 7, 2023
Updated
Oct 18, 2024
Vendor
MightyPirates
Product
OpenComputers
Classifications
CWE-918, T1552.005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 18, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=>= 1.2.0, < 1.8.3
  2. Affected versionversion=1.2.0 <1.8.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MightyPirates · OpenComputersversion=>= 1.2.0, < 1.8.3; version=1.2.0 <1.8.3

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.6GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1552.005Cloud Instance Metadata API

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

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Your stack

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