CVE-2026-59299

Composition lookup can potentially poison base function in Spring Cloud Function

LOW

3.5

CVSS Score

Published: August 27, 2026 at 05:57 PM UTC

Updated: September 2, 2026 at 01:01 AM UTC

2 products affected across 2 vendorsSpring Cloud FunctionSpring Cloud Function

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Severity

LOW3.5

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

Composition lookup can potentially poison base function in Spring Cloud Function. Spring Cloud Function 5.0.0 - 5.0.3 Spring Cloud Function 4.3.0 - 4.3.4 Spring Cloud Function 4.2.0 - 4.2.7 Spring Cloud Function 3.2.16 and earlier

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Spring Cloud Function · VMware

95%

3.2.0 ≤ v < 3.2.174.2.0 ≤ v < 4.2.84.3.0 ≤ v < 4.3.55.0.0 ≤ v < 5.0.4

Affected range stops below 3.2.17, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.2.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.3.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.0.4, so it looks safe — our inference, not a vendor statement

Spring Cloud Function · Spring

60%

v ≤ 3.2.164.2.0 ≤ v ≤ 4.2.74.3.0 ≤ v ≤ 4.3.45.0.0 ≤ v ≤ 5.0.34.2.0 4.3.0 5.0.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://spring.io/security/cve-2026-59299

References (1)

PatchVendor Advisory

Source: cverecord

https://spring.io/security/cve-2026-59299

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.5LOW[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: HIGH
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: LOW
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusANALYZED

CWE

CWE-471

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