Vulnerability · Published Oct 20, 2026 · Assigned by TYPO3

CVE-2026-113459Sensitive Data Exposure in extension "TYPO3 AI Integration Extension" (ns_t3ai)

High 7.1

In plain English

A high-severity security flaw in Extension "TYPO3 AI Integration Extension" from TYPO3. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).

Severity (CVSS 4.0)7.1High

Exploit odds (30 days)0.4%top 70.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
TYPO3	Extension "TYPO3 AI Integration Extension"	0 – before 14.0.2

Weakness: CWE-201 · 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

References

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