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MEDIUM severity

CVE-2026-40979 — spring-ai-transformers

MEDIUM

CVE-2026-40979 is a medium-severity (CVSS 6.1) CWE-377 vulnerability in org.springframework.ai:spring-ai-transformers. A fix is available for org.springframework.ai:spring-ai-transformers — see the affected versions and patch details below.

Spring AI's ONNX model cache defaults to world-writable predictable /tmp directory

Also known asGHSA-r5hp-3cgj-j6xv
Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed
Exploitation data as of Nov 2, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-40979.

EPSS Exploitation Probability

via FIRST.org ↗
0.1%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs1th percentile — riskier than 1% of all scored CVEsHighest risk
0.00%0.22%0.44%0.65%0.0%0.1%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

2 pkgs affected
☕org.springframework.ai:spring-ai-transformers☕org.springframework.ai:spring-ai-transformers

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

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)

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.springframework.ai:spring-ai-transformers≥ 1.0.0&&< 1.0.61.0.6org.springframework.ai:spring-ai-transformers:1.0.6
☕Mavenorg.springframework.ai:spring-ai-transformers≥ 1.1.0&&< 1.1.51.1.5org.springframework.ai:spring-ai-transformers:1.1.5

Affected Products

1 product · 2 configurations
Application
spring aivmware
≥ 1.1.0 && < 1.1.5
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.springframework.ai:spring-ai-transformers, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.springframework.ai:spring-ai-transformers to 1.0.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-40979 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

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)
O3 Security · Impact-Aware SCA

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CVE-2026-40979: spring-ai-transformers — Fixed in 1.0.6