CVE-2026-47851

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

HIGH

7.5

CVSS Score

Published: August 26, 2026 at 11:28 PM UTC

Updated: September 4, 2026 at 08:26 PM UTC

2 products affected across 2 vendorsSpring AISpring AI

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Severity

HIGH7.5

Exploit prediction

EPSS 0.5%

SSVC

No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Spring AI · VMware

95%

1.0.0 ≤ v < 1.0.101.1.0 ≤ v < 1.1.92.0.0 ≤ v < 2.0.0.1

Affected range stops below 1.0.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 1.1.9, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.0.0.1, so it looks safe — our inference, not a vendor statement

Spring AI · Spring

60%

1.0.0 ≤ v ≤ 1.0.91.1.0 ≤ v ≤ 1.1.81.0.0 1.1.0 2.0.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://spring.io/security/cve-2026-47851

References (1)

Vendor Advisory

Source: cverecord

https://spring.io/security/cve-2026-47851

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHvmware

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-674

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