What is CVE-2023-46326?

CVE-2023-46326 is a high-severity vulnerability in Zstack, classified under Insufficient Session Expiration. CVSS score: 8.8/10. Published 2023-11-30.

How severe is CVE-2023-46326?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Zstack

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.

Published 2023-11-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (52.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Zstack

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

github.com/zstackio/zstack/security/advisories/GHSA-w2rv-x3pp-h67q (Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2023-46326?: CVE-2023-46326 is a high-severity vulnerability in Zstack, classified under Insufficient Session Expiration. CVSS score: 8.8/10. Published 2023-11-30.
How severe is CVE-2023-46326?: High severity. CVSS v3 base score is 8.8 out of 10.