CVE-2026-113459 PUBLISHED

Sensitive Data Exposure in extension "TYPO3 AI Integration Extension" (ns_t3ai)

Assigner: TYPO3
Reserved: 20.10.2026 Published: 20.10.2026 Updated: 20.10.2026

In versions running on TYPO3 10 and 11, the configured OpenAI API key is embedded in every backend page, so that the editor plugin can contact the OpenAI service directly from the browser. Any authenticated backend user can read the key and use it at the expense of the site operator. This only applies if an API key has been configured.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 7.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	TYPO3
Product	Extension "TYPO3 AI Integration Extension"
Versions	Default: unaffected affected from 0 to 14.0.2 (excl.)

Credits

Sven Wappler reporter
Nitsan remediation developer

References

https://typo3.org/security/advisory/typo3-ext-sa-2026-035

Problem Types

CWE-201 Insertion of Sensitive Information Into Sent Data CWE