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cveGitHub_MCVE-2023-38700
HistoryAug 04, 2023 - 7:15 p.m.

CVE-2023-38700

2023-08-0419:15:09
CWE-200
GitHub_M
web.nvd.nist.gov
38
cve-2023-38700
matrix-appservice-irc
node.js
irc bridge
matrix
event leak
security vulnerability
nvd

CVSS3

3.7

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

AI Score

4.1

Confidence

High

EPSS

0.001

Percentile

35.0%

matrix-appservice-irc is a Node.js IRC bridge for Matrix. Prior to version 1.0.1, it was possible to craft an event such that it would leak part of a targeted message event from another bridged room. This required knowing an event ID to target. Version 1.0.1n fixes this issue. As a workaround, set the matrixHandler.eventCacheSize config value to 0. This workaround may impact performance.

Affected configurations

Nvd
Vulners
Node
matrixmatrix_irc_bridgeRange<1.0.1node.js
VendorProductVersionCPE
matrixmatrix_irc_bridge*cpe:2.3:a:matrix:matrix_irc_bridge:*:*:*:*:*:node.js:*:*

CNA Affected

[
  {
    "vendor": "matrix-org",
    "product": "matrix-appservice-irc",
    "versions": [
      {
        "version": "< 1.0.1",
        "status": "affected"
      }
    ]
  }
]

CVSS3

3.7

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

AI Score

4.1

Confidence

High

EPSS

0.001

Percentile

35.0%

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