Summary
TYPO3 Information Disclosure via Exception Handling/Logger
Problem
It has been discovered that the install tool password has been logged as plaintext in case the password hashing mechanism used for the password was incorrect.
Credits
Thanks to TYPO3 core & security team member Oliver Hader who reported and fixed the issue.
References
Impact
CVE-2024-55891 has a CVSS score of 3.1 (Low). The vector is network-reachable, low privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (13.4.3); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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See it in your environmentNew to Kodem? Get a demo →Remediation advice
Update to TYPO3 versions 13.4.3 LTS that fixes the problem described.
Frequently Asked Questions
- What is CVE-2024-55891? CVE-2024-55891 is a low-severity security vulnerability in typo3/cms-install (composer), affecting versions = 13.4.2. It is fixed in 13.4.3.
- How severe is CVE-2024-55891? CVE-2024-55891 has a CVSS score of 3.1 (Low). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of typo3/cms-install are affected by CVE-2024-55891? typo3/cms-install (composer) versions = 13.4.2 is affected.
- Is there a fix for CVE-2024-55891? Yes. CVE-2024-55891 is fixed in 13.4.3. Upgrade to this version or later.
- Is CVE-2024-55891 exploitable, and should I be worried? Whether CVE-2024-55891 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2024-55891 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2024-55891? Upgrade
typo3/cms-installto 13.4.3 or later.