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CVE-2023-48713

16
FAUCET Score

CVE-2023-48713 is a Denial-of-Service (DoS) vulnerability affecting Knative Serving versions prior to 0.39.0. A low-privileged attacker, controlling a pod's /metrics endpoint responses, can trigger an unbound memory allocation bug in the autoscaler, leading to a cluster-wide DoS. This vulnerability has a CVSS score of 5.3 (Medium) due to its network attack vector and high impact on availability, despite high attack complexity. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.10.5CPE matchmatch criteria
cpe:2.3:a:knative:serving:*:*:*:*:*:*:*:*
>= 1.11.0, < 1.11.3CPE matchmatch criteria
cpe:2.3:a:knative:serving:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.87%
Probability of exploitation in next 30 days
EPSS Percentile
55.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0087 is in the 44th percentile among its peer group of 1,424 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

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: knative.dev/servingFixed in: 0.39.0

Vendor Advisories (1)

goGHSA-qmvj-4qr9-v547medium

Knative Serving vulnerable to attacker-controlled pod causing denial of service of autoscaler

Nov 27, 2023

References

github.com / knative/serving/commit/012ee2509231b80b7842139bfabc30516d3026ca
Patch
github.com / knative/serving/commit/101f814112b9ca0767f457e7e616b46205551cf1
Patch
github.com / knative/serving/commit/fff40ef7bac9be8380ec3d1c70fc15b57093382a
Patch
github.com / knative/serving/security/advisories/GHSA-qmvj-4qr9-v547
Third Party Advisory