Vulnerability · Published Aug 26, 2026 · Assigned by vmware

CVE-2026-47851Unbounded recursion over attacker-controlled PDF outline tree in Spring AI PDF Document Reader

High 7.5

In plain English

A high-severity security flaw in Spring AI from Spring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 60.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Analyzing a PDF with a deeply nested or cyclic table of contents can cause a StackOverflowError in the ingestion thread. Spring AI 2.0.0 Spring AI 1.1.0 - 1.1.8 Spring AI 1.0.0 - 1.0.9

Affected products (as reported)

VendorProductVersions
Spring Spring AI 2.0.01.1.0 – through 1.1.81.0.0 – through 1.0.9

Weakness: CWE-674 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References