How severe is CVE-2023-46326?

CVE-2023-46326 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-46326 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-46326?

CVE-2023-46326 affects Zstack. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-46326?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-46326 published?

CVE-2023-46326 was published on 2023-11-30 and last updated on 2026-06-17.

CVE-2023-46326

CVE-2023-46326 is a high-severity vulnerability in Zstack with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-613.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-613
Affected product: Zstack
Published: 2023-11-30
Last modified: 2026-06-17

Description

ZStack Cloud version 3.10.38 and before allows unauthenticated API access to the list of active job UUIDs and the session ID for each of these. This leads to privilege escalation.

Frequently asked questions

What is CVE-2023-46326?: ZStack Cloud version 3.10.38 and before allows unauthenticated API access to the list of active job UUIDs and the session ID for each of these. This leads to privilege escalation.
How severe is CVE-2023-46326?: CVE-2023-46326 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-46326 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-46326?: CVE-2023-46326 affects Zstack. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-46326?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-46326 published?: CVE-2023-46326 was published on 2023-11-30 and last updated on 2026-06-17.

References

https://github.com/zstackio/zstack/security/advisories/GHSA-w2rv-x3pp-h67q

Affected products (1)

cpe:2.3:a:zstack:zstack:*:*:*:*:*:*:*:*

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