Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-39106

22
FAUCET Score

CVE-2023-39106 is a critical remote code execution (RCE) vulnerability affecting Nacos Group Nacos Spring Project versions 1.1.1 and earlier, stemming from an insecure deserialization flaw within the SnakeYaml's Constructor() component. With a CVSS score of 8.8 (HIGH), this vulnerability allows an authenticated remote attacker to execute arbitrary code with low attack complexity, leading to high impacts on confidentiality, integrity, and availability. While no active exploitation, public exploit code, or significant community discussion has been observed, the high severity warrants immediate attention and patching.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.1.1CPE matchmatch criteria
cpe:2.3:a:alibabacloud:nacos_spring_project:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.07%
Probability of exploitation in next 30 days
EPSS Percentile
61.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0107 is in the 58th percentile among its peer group of 17,844 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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 Advisories (1)

mavenGHSA-v6c8-pwhq-288mhigh

Nacos Spring vulnerable to Unsafe Deserialization

Aug 21, 2023

References

github.com / nacos-group/nacos-spring-project/issues/314
ExploitIssue Tracking