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CVE-2022-39366

24
FAUCET Score

CVE-2022-39366 is a critical authentication bypass vulnerability affecting DataHub, an open-source metadata platform, in versions prior to 0.8.45. The flaw stems from the Metadata Service's StatelessTokenService failing to verify JWT token signatures, allowing an unauthenticated attacker to impersonate any user. With a CVSS score of 9.8 (Critical), this vulnerability has a network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.8.45CPE matchmatch criteria
cpe:2.3:a:datahub:datahub:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.9CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
5.3
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.85%
Probability of exploitation in next 30 days
EPSS Percentile
54.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0085 is in the 39th percentile among its peer group of 36,835 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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 (1)

pippatch availablevia ghsa
Product: acryl-datahubFixed in: 0.8.45

Vendor Advisories (1)

pipGHSA-r8gm-v65f-c973critical

acryl-datahub missing JWT signature check

Oct 31, 2022

References

codeql.github.com / codeql-query-help/java/java-missing-jwt-signature-check
Third Party Advisory
github.com / datahub-project/datahub/blob/aa146db611e3a4ca3aa17bb740783f789d4444d3/metadata-service/auth-impl/src/main/java/com/datahub/authentication/token/StatelessTokenService.java
ExploitThird Party Advisory
github.com / datahub-project/datahub/blob/aa146db611e3a4ca3aa17bb740783f789d4444d3/metadata-service/auth-impl/src/main/java/com/datahub/authentication/token/StatelessTokenService.java
ExploitThird Party Advisory
github.com / datahub-project/datahub/releases/tag/v0.8.45
Third Party Advisory
github.com / datahub-project/datahub/security/advisories/GHSA-r8gm-v65f-c973
Third Party Advisory