CVE-2024-52505Network attack vector

Authenticated IRC command injection via channel names

Published Nov 14, 2024 · Updated Nov 14, 2024

Command injection in Matrix.org matrix-appservice-irc before 3.0.3 allows remote authenticated users to execute IRC commands as the bridge bot. The provisioning channel-name schema accepted ASCII control characters, including IRC line terminators, and passed the resulting name into downstream IRC messages. Authenticated provisioning API access is required; injected commands run with the bridge bot's IRC identity and can read or alter IRC-visible data.

CVSS severity5.4
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Matrix.org matrix-appservice-irc before 3.0.3 allows remote authenticated users to execute IRC commands as the bridge bot. The provisioning channel-name schema accepted ASCII control characters, including IRC line terminators, and passed the resulting name into downstream IRC messages. Authenticated provisioning API access is required; injected commands run with the bridge bot's IRC identity and can read or alter IRC-visible data.

The record

CVE
CVE-2024-52505
Published
Nov 14, 2024
Updated
Nov 14, 2024
Vendor
Matrix.org
Product
matrix-appservice-irc
Classifications
CWE-147, CWE-20
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 14, 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=< 3.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Matrix.org · matrix-appservice-ircversion=< 3.0.3

Published CVSS scores

5.4GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-147Improper Neutralization of Input Terminators
CWE-20Improper Input Validation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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