9.8

CVE-2026-59318: spring spring ai Incorrect Authorization

CVSS: 9.8v3.1CriticalAnalyzed
Published 21-08-2026Last modified 22-08-2026
Open JSON

Vulnerability summary

CVE-2026-59318 is a critical (CVSS 9.8) Incorrect Authorization vulnerability in spring spring ai. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15.8% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
0.25%
0%100%
Low · +0.07 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 21-08-2026
    PublishedVulnerability first disclosed.
  2. 22-08-2026
    Last modifiedVulnerability information updated.

Description

In Spring AI's tool calling support, the per-request tool list is advertised to the model as a boundary but is not fully enforced when a tool call is dispatched. Under certain conditions, a tool that was not made available to the current request could be invoked, potentially leading to privilege escalation. Affected versions: Spring AI: 2.0.0 Spring AI: 1.1.0 through 1.1.8 Spring AI: 1.0.0 through 1.0.9

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

+0.07 pp

From 0.19% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.25%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Spring1 product
  • spring ai2.0.0 | ≥ 1.1.0, ≤ 1.1.8 | ≥ 1.0.0, ≤ 1.0.9
Vmware1 product
  • spring_ai≥ 1.0.0, < 1.0.10 | ≥ 1.1.0, < 1.1.9 | ≥ 2.0.0, < 2.0.1

2 vendors · 2 products

References

1 links