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CVE-2021-41078

25
FAUCET Score

CVE-2021-41078 is a critical vulnerability affecting Nameko through version 2.13.0, allowing for arbitrary code execution due to insecure deserialization of configuration files. With a CVSS score of 7.8 (High), this vulnerability can be triggered by an unauthenticated attacker, requiring user interaction, and could lead to complete compromise of confidentiality, integrity, and availability. While the vulnerability has a high FAUCET Risk Score of 61/100, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.13.0CPE matchmatch criteria
cpe:2.3:a:nameko:nameko:*:*:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:a:nameko:nameko:3.0.0:rc1:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:a:nameko:nameko:3.0.0:rc2:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:a:nameko:nameko:3.0.0:rc3:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:a:nameko:nameko:3.0.0:rc4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.49%
Probability of exploitation in next 30 days
EPSS Percentile
71.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0149 is in the 70th percentile among its peer group of 11,621 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

pippatch availablevia ghsa
Product: namekoFixed in: 2.14.0
pippatch availablevia ghsa
Product: namekoFixed in: 3.0.0rc10

Vendor Advisories (1)

pipGHSA-6p52-jr3q-c94gcritical

Nameko Arbitrary code execution due to YAML deserialization

Oct 19, 2021

References

github.com / nameko/nameko
Third Party Advisory
github.com / nameko/nameko/security/advisories/GHSA-6p52-jr3q-c94g
ExploitThird Party Advisory