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CVE-2023-52079

19
FAUCET Score

CVE-2023-52079 affects kriszyp msgpackr, a fast MessagePack NodeJS/JavaScript implementation, prior to version 1.10.1. The vulnerability allows attackers to trigger denial-of-service by crafting malicious MessagePack messages that cause the decoder to enter an infinite loop. Rated 6.5 MEDIUM, this vulnerability has a network attack vector and low attack complexity, potentially leading to high availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.10.1CPE matchmatch criteria
cpe:2.3:a:kriszyp:msgpackr:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

6.8MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.69%
Probability of exploitation in next 30 days
EPSS Percentile
48.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0069 is in the 59th percentile among its peer group of 21,951 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 0.0 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
npmpatch availablevia ghsa
Product: msgpackrFixed in: 1.10.1
redhatend of lifevia redhat_api
Product: Red Hat Fuse 7Fixed in: msgpackr

Vendor Advisories (2)

npmGHSA-7hpj-7hhx-2fgxhigh

msgpackr's conversion of property names to strings can trigger infinite recursion

Dec 28, 2023
redhatCVE-2023-52079Moderate

msgpackr: crafted message leads to Denial of Service

Dec 28, 2023

References

github.com / kriszyp/msgpackr/commit/18f44f8800e2261341cdf489d1ba1e35a0133602
Patch
github.com / kriszyp/msgpackr/security/advisories/GHSA-7hpj-7hhx-2fgx
Vendor Advisory