CVE-2024-21623
CWE-74Published: January 2, 2024· Updated: Jun 17, 2026
Official Description
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.
Risk Analysis
OTClient is vulnerable to expression injection within its SonarCloud workflow, allowing remote attackers to execute commands on the runner. This could lead to secret leakage and repository compromise.
There is no known public exploit, and it is not in the CISA KEV. The vulnerability is remotely exploitable.
Update to the commit containing the fix. Audit CI/CD workflows to ensure that user-controlled input is not evaluated as code.
Technical Analysis
CVE-2024-21623 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (10)
Quick Facts
Related CVEs (CWE-74)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2024-21623 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts