What is CVE-2026-40979?

CVE-2026-40979 is a medium-severity vulnerability in Spring Ai, classified under Insecure Temporary File. CVSS score: 6.1/10. Published 2026-04-28.

How severe is CVE-2026-40979?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Spring Ai

CVE-2026-40979

In Spring AI, having access to a shared environment can expose the ONNX model used by the application. Affected versions: Spring AI: 1.0.0 - 1.0.5 (fixed in 1.0.6), 1.1.0 - 1.1.4 (fixed in 1.1.5)

EPSS: 0.000 (5.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N.

Affected products

Spring Ai — versions 1.0.0, 1.1.0
Vmware Spring_ai

Weakness classification (CWE)

CWE-377 — Insecure Temporary File

References

security@vmware.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-40979?: CVE-2026-40979 is a medium-severity vulnerability in Spring Ai, classified under Insecure Temporary File. CVSS score: 6.1/10. Published 2026-04-28.
How severe is CVE-2026-40979?: Medium severity. CVSS v3 base score is 6.1 out of 10.