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CVE-2024-45809

22
FAUCET Score

CVE-2024-45809 is a high-severity vulnerability affecting Envoy proxy versions prior to 1.31.2, 1.30.6, and 1.29.9. It allows for a denial-of-service (DoS) attack, causing Envoy to crash due to a null pointer dereference when specific conditions related to remote JWKs, route cache clearing, and JWT filter header operations are met. The vulnerability has a CVSS score of 7.5 (High) due to its network-based attack vector, low attack complexity, and high impact on availability. There is currently no known public exploit code, active exploitation, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.29.0, < 1.29.9CPE matchmatch criteria
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
>= 1.30.0, < 1.30.6CPE matchmatch criteria
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
>= 1.31.0, < 1.31.2CPE matchmatch criteria
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 10th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

Vendor Patches (2)

redhatno patchvia redhat_api
Product: OpenShift Service Mesh 2Fixed in: openshift-service-mesh/istio-cni-rhel8
redhatno patchvia redhat_api
Product: OpenShift Service Mesh 2Fixed in: openshift-service-mesh/pilot-rhel8

Vendor Advisories (1)

redhatCVE-2024-45809Important

envoy: JWT filter crash in the clear route cache with remote JWKs

Sep 20, 2024

References

github.com / envoyproxy/envoy/security/advisories/GHSA-wqr5-qmq7-3qw3
Third Party Advisory