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CVE-2023-46254

15
FAUCET Score

CVE-2023-46254 is a medium-severity information disclosure vulnerability affecting Clastix Capsule and Capsule-Proxy, specifically when Capsule-Proxy runs with default caching enabled and tenant owners are ServiceAccounts with identical names in different namespaces. This flaw allows a tenant owner to list namespaces belonging to other tenants, potentially exposing sensitive organizational structures. The vulnerability has a CVSS score of 4.3 (medium) due to its network attack vector and low attack complexity, but it only permits information exfiltration without privilege escalation. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.4.5CPE matchmatch criteria
cpe:2.3:a:clastix:capsule:*:*:*:*:*:*:*:*
< 0.4.5CPE matchmatch criteria
cpe:2.3:a:clastix:capsule-proxy:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
34.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 43rd percentile among its peer group of 21,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/projectcapsule/capsuleFixed in: 0.4.5
gopatch availablevia ghsa
Product: github.com/projectcapsule/capsule-proxyFixed in: 0.4.5

Vendor Advisories (1)

goGHSA-6758-979h-249xmedium

capsule-proxy service discloses Namespaces of colliding tenants to owners of different tenants with the same ServiceAccount name

Nov 7, 2023

References

github.com / projectcapsule/capsule-proxy/commit/615202f7b02eaec7681336bd63daed1f39ae00c5
Patch
github.com / projectcapsule/capsule-proxy/security/advisories/GHSA-6758-979h-249x
Vendor Advisory