CVE-2024-21623Public exploitNetwork attack vector

Runner command execution via unquoted branch name

Published Jan 2, 2024 · Updated Nov 14, 2024

Command injection in OTClient - Redemption allows remote attackers to execute commands on GitHub Actions runners through pull requests. The Analysis - SonarCloud workflow inserts the attacker-controlled pull-request head branch directly into a shell run block without neutralizing command substitutions. Exploitation requires a fork and crafted branch name; successful injection executes with the workflow's token and secrets, enabling secret disclosure and repository modification.

CVSS severity9.8
Critical
EPSS probability1.24%
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 OTClient - Redemption allows remote attackers to execute commands on GitHub Actions runners through pull requests. The Analysis - SonarCloud workflow inserts the attacker-controlled pull-request head branch directly into a shell run block without neutralizing command substitutions. Exploitation requires a fork and crafted branch name; successful injection executes with the workflow's token and secrets, enabling secret disclosure and repository modification.

The record

CVE
CVE-2024-21623
Published
Jan 2, 2024
Updated
Nov 14, 2024
Vendor
OpenTibiaBR
Product
OTClient - Redemption
Classifications
CWE-74, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 2, 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=< db560de0b56476c87a2f967466407939196dd254

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenTibiaBR · OTClient - Redemptionversion=< db560de0b56476c87a2f967466407939196dd254

Published CVSS scores

9.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059Command and Scripting Interpreter

Public exploit references

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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