High severity · published Aug 26, 2026
CVE-2026-47851
Unbounded recursion over attacker-controlled PDF outline tree in Spring AI PDF Document Reader
7.5
CVSS
0.5%
EPSS
No
On KEV
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
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SA
Spring AI · Spring
2.0.0; 1.1.0 through 1.1.8; 1.0.0 through 1.0.9 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47851
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-47851
Vendor Advisory
https://spring.io/security/cve-2026-47851
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