8.3

CVE-2025-58356: edgelesssys constellation

CVSS: 8.3v4.0HighDeferred
AliasesGHSA-hq76-6gh2-5g4qGO-2025-4076
Published 27-10-2025Last modified 28-11-2025
Open JSON

Vulnerability summary

CVE-2025-58356 is a high (CVSS 8.3) vulnerability in edgelesssys constellation. EPSS estimates a 0.11% chance of exploitation in the next 30 days, higher than 1.1% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.3/10
010
High · v4.0 (CVE.org)
EPSS score
0.11%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
OPENSUSE-SU-2025:15710-1OPENSUSE-SU-2026:21483-1

Timeline

  1. 27-10-2025
    PublishedVulnerability first disclosed.
  2. 28-11-2025
    Last modifiedVulnerability information updated.

Description

Constellation is the first Confidential Kubernetes. The Constellation CVM image uses LUKS2-encrypted volumes for persistent storage. When opening an encrypted storage device, the CVM uses the libcryptsetup function crypt_activate_by_passhrase. If the VM is successful in opening the partition with the disk encryption key, it treats the volume as confidential. However, due to the unsafe handling of null keyslot algorithms in the cryptsetup 2.8.1, it is possible that the opened volume is not encrypted at all. Cryptsetup prior to version 2.8.1 does not report an error when processing LUKS2-formatted disks that use the cipher_null-ecb algorithm in the keyslot encryption field. This vulnerability is fixed in 2.24.0.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.11%

Chance of exploitation in the next 30 days

Percentile

1%

Versus all other CVEs

30-day change

0.00 pp

From 0.10% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.11%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Edgelesssys1 product
Github.com/edgelesssys1 product
  • constellationAll versions (No fix recorded)
Github.com/edgelesssys/constellation1 product
  • v2< 2.24.0

3 vendors · 3 products

References

8 links