# CVE-2026-59294 — Spring AI

> As of 2026-08-28, CVE-2026-59294 is a MEDIUM-severity vulnerability in Spring AI, CVSS v3.1 5.9, EPSS 0.3% (27.8th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-59294, most recently “91 Spring Framework CVEs Disclosed by Broadcom, Including Critical Deserialization Flaw CVE-2026-59285”.

**Last updated:** 2026-08-28

## What is CVE-2026-59294?

ResourceCacheService.getCacheName() builds the on-disk filename by appending the URI fragment verbatim, without stripping path separators or .. sequences, and passes the result to new File(resourceParentFolder, newFileName) before writing the downloaded bytes there. Spring AI 2.0.0 Spring AI 1.1.0 - 1.1.8 Spring AI 1.0.9 and earlier

The record classifies CVE-2026-59294 under weakness class [CWE-22](https://intel.threadlinqs.com/cwe/CWE-22). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction, and has high impact on integrity. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 61 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 5.9 — MEDIUM (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L`)
- **EPSS (FIRST):** 0.3% probability of exploitation in the next 30 days, higher than 27.8% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 4.1/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-27, last modified 2026-08-28

## Is CVE-2026-59294 being exploited?

It currently carries a trending score of 31 in the Threadlinqs vulnerability feed.

## Affected products and versions

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

## How to fix CVE-2026-59294

Vendor advisory: [https://spring.io/security/cve-2026-59294](https://spring.io/security/cve-2026-59294). Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

## Threat activity tracking CVE-2026-59294

1 tracked threat in the Threadlinqs corpus references CVE-2026-59294, 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, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-10-10. This product uses the NVD API but is not endorsed or certified by the NVD.

**Other references**

- [spring.io](https://spring.io/security/cve-2026-59294)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-59294
Full detection coverage and IOCs for threats exploiting CVE-2026-59294 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp