CVE-2026-59291Network attack vector

Authenticated file read and SSRF

Published Aug 27, 2026 · Updated Aug 27, 2026

SSRF and file read in affected Spring Cloud Function releases allows remote authenticated users to access host files or network resources. Spring has not published the affected component, attacker-controlled input, or the operation that accepts a local-file or remote URI. The published vector requires high privileges and user interaction; reported effects are limited to file reads and server-side requests.

CVSS severityUnavailable
Unscored
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF and file read in affected Spring Cloud Function releases allows remote authenticated users to access host files or network resources. Spring has not published the affected component, attacker-controlled input, or the operation that accepts a local-file or remote URI. The published vector requires high privileges and user interaction; reported effects are limited to file reads and server-side requests.

The record

CVE
CVE-2026-59291
Published
Aug 27, 2026
Updated
Aug 27, 2026
Vendor
Spring
Product
Spring Cloud Function
Classifications
T1005
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.2.0 <=4.2.7
  2. Affected versionversion=4.3.0 <=4.3.4
  3. Affected versionversion=5.0.0 <=5.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Spring · Spring Cloud Functionversion=4.2.0 <=4.2.7; version=4.3.0 <=4.3.4; version=5.0.0 <=5.0.3

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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