# CVE-2026-47851 — Spring AI

> As of 2026-08-27, CVE-2026-47851 is a HIGH-severity vulnerability in Spring AI, CVSS v3.1 7.5, EPSS 0.4% (37.9th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-47851, most recently “91 Spring Framework CVEs Disclosed by Broadcom, Including Critical Deserialization Flaw CVE-2026-59285”.

**Last updated:** 2026-08-27

## What is CVE-2026-47851?

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

The record classifies CVE-2026-47851 under weakness class [CWE-674](https://intel.threadlinqs.com/cwe/CWE-674). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 62 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.5 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **EPSS (FIRST):** 0.4% probability of exploitation in the next 30 days, higher than 37.9% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.3/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-26, last modified 2026-08-27

## Is CVE-2026-47851 being exploited?

It currently carries a trending score of 33 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Spring](https://intel.threadlinqs.com/vendors/spring): AI

## How to fix CVE-2026-47851

No vendor patch reference has been recorded for CVE-2026-47851 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-47851

1 tracked threat in the Threadlinqs corpus references CVE-2026-47851, either in the campaign’s CVE list or as an indicator on the campaign record.

- [91 Spring Framework CVEs Disclosed by Broadcom, Including Critical Deserialization Flaw CVE-2026-59285](https://intel.threadlinqs.com/threat/TL-2026-2105) — CRITICAL · 2026-08-21

## Sources

Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on 2026-10-10.

**Other references**

- [spring.io](https://spring.io/security/cve-2026-47851)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-47851
Full detection coverage and IOCs for threats exploiting CVE-2026-47851 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp