CVE-2024-21623
Arbitrary Expression Injection in github workflow leads to Command execution & leaking secrets
OTCLient is an alternative tibia client for otserv. Prior to commit db560de0b56476c87a2f967466407939196dd254, the /mehah/otclient "Analysis - SonarCloud" workflow is vulnerable to an expression injection in Actions, allowing an attacker to run commands remotely on the runner, leak secrets, and alter the repository using this workflow. Commit db560de0b56476c87a2f967466407939196dd254 contains a fix for this issue.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Arbitrary Expression Injection in github workflow leads to Command execution & leaking secrets
OTCLient is an alternative tibia client for otserv. Prior to commit db560de0b56476c87a2f967466407939196dd254, the /mehah/otclient "Analysis - SonarCloud" workflow is vulnerable to an expression injection in Actions, allowing an attacker to run commands remotely on the runner, leak secrets, and alter the repository using this workflow. Commit db560de0b56476c87a2f967466407939196dd254 contains a fix for this issue.
- Record
CVE-2024-21623- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-74
- Updated
- 2026-11-02
EUVDEUVD-2024-19270
OTCLient is an alternative tibia client for otserv. Prior to commit db560de0b56476c87a2f967466407939196dd254, the /mehah/otclient "Analysis - SonarCloud" workflow is vulnerable to an expression injection in Actions, allowing an attacker to run commands remotely on the runner, leak secrets, and alter the repository using this workflow. Commit db560de0b56476c87a2f967466407939196dd254 contains a fix for this issue.
- Record
EUVD-2024-19270- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
NVD
OTCLient is an alternative tibia client for otserv. Prior to commit db560de0b56476c87a2f967466407939196dd254, the /mehah/otclient "Analysis - SonarCloud" workflow is vulnerable to an expression injection in Actions, allowing an attacker to run commands remotely on the runner, leak secrets, and alter the repository using this workflow. Commit db560de0b56476c87a2f967466407939196dd254 contains a fix for this issue.
- Record
CVE-2024-21623- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-74
- Updated
- 2026-11-02
OSV
Arbitrary Expression Injection in github workflow leads to Command execution & leaking secrets
OTCLient is an alternative tibia client for otserv. Prior to commit db560de0b56476c87a2f967466407939196dd254, the /mehah/otclient "Analysis - SonarCloud" workflow is vulnerable to an expression injection in Actions, allowing an attacker to run commands remotely on the runner, leak secrets, and alter the repository using this workflow. Commit db560de0b56476c87a2f967466407939196dd254 contains a fix for this issue.
- Record
CVE-2024-21623- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-74
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-21623 is a critical vulnerability (CVSS 9.8) in Mehah Otclient, published January 2, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.23%, the 69th percentile. No source names a fixed version.
References
github.com/mehah/otclient/security/advisories/GHSA-q6gr-wc79-v589
securitylab.github.com/research/github-actions-preventing-pwn-requests
nvd.nist.gov/vuln/detail/CVE-2024-21623