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CVE-2024-48921

14
FAUCET Score

CVE-2024-48921 describes a low-severity vulnerability in Kyverno, a Kubernetes policy engine, where a ClusterPolicy like "disallow-privileged-containers" can be bypassed. This occurs because PolicyExceptions, designed to override policies, can be created in any namespace, allowing users with privileges to non-Kyverno namespaces to circumvent intended restrictions. The CVSS score is 2.7 (LOW), indicating a network-based attack with low impact on integrity, requiring high privileges. There is no evidence of active exploitation, public exploit code, or inclusion in the KEV catalog, though it has received some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.13.0CPE matchmatch criteria
cpe:2.3:a:nirmata:kyverno:*:*:*:*:*:go:*:*

CVSS Data

CVSS version used by this source: 4.0

8.7HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
HIGH
VS Availability
NONE
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.55%
Probability of exploitation in next 30 days
EPSS Percentile
42.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0055 is in the 60th percentile among its peer group of 709 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.0 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 (2)

gopatch availablevia ghsa
Product: github.com/kyverno/kyvernoFixed in: 1.13.0
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

goGHSA-qjvc-p88j-j9rmhigh

Kyverno's PolicyException objects can be created in any namespace by default

Oct 29, 2024

References

github.com / kyverno/kyverno/security/advisories/GHSA-qjvc-p88j-j9rm
ExploitVendor Advisory