CVE-2026-62035Network attack vectorHinoki check available

Subscriber-level unauthorized access

Published Oct 10, 2026 · Updated Oct 10, 2026

Broken access control in Upcasted S3 Offload 3.1.0 and earlier allows remote authenticated users to perform unauthorized operations. The public CVE record identifies missing authorization but does not disclose the affected endpoint, function, or operation. Subscriber-level access is sufficient; the specific data exposed or modified and the form of service disruption are not disclosed.

CVSS severity6.3
Medium
EPSS probability0.25%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Broken access control in Upcasted S3 Offload 3.1.0 and earlier allows remote authenticated users to perform unauthorized operations. The public CVE record identifies missing authorization but does not disclose the affected endpoint, function, or operation. Subscriber-level access is sufficient; the specific data exposed or modified and the form of service disruption are not disclosed.

The record

CVE
CVE-2026-62035
Published
Oct 10, 2026
Updated
Oct 10, 2026
Vendor
Upcasted
Product
Upcasted S3 Offload
Classifications
CWE-862, CAPEC-180
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=n/a <=3.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Upcasted · Upcasted S3 Offloadversion=n/a <=3.1.0

Published CVSS scores

6.3PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
CAPEC-180Exploiting Incorrectly Configured Access Control Security Levels

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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