CVE-2023-46326Network attack vector

Privilege escalation via unauthenticated session ID disclosure

Published Nov 30, 2023 · Updated Aug 2, 2024

Authentication bypass in ZStack Cloud 3.10.38 and earlier allows remote attackers to obtain active job UUIDs and associated session IDs. The /calls/uuids API endpoint returns these identifiers without requiring authentication, exposing active session material to unauthenticated requests. The disclosed session IDs grant the privileges of corresponding active sessions, so impact depends on the privileges attached to those sessions.

CVSS severity8.8
High
EPSS probability0.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in ZStack Cloud 3.10.38 and earlier allows remote attackers to obtain active job UUIDs and associated session IDs. The /calls/uuids API endpoint returns these identifiers without requiring authentication, exposing active session material to unauthenticated requests. The disclosed session IDs grant the privileges of corresponding active sessions, so impact depends on the privileges attached to those sessions.

The record

CVE
CVE-2023-46326
Published
Nov 30, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-613, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.1GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-613Insufficient Session Expiration
T1539Steal Web Session Cookie

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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