Exposed Internal Token Vulnerability in JFrog Artifactory by JFrog
CVE-2026-42018

7.5HIGH

Key Information:

Vendor

Jfrog

Status
Artifactory
Vendor
CVE Published:
12 August 2026

Badges

👾 Exploit Exists🦅 CISA Reported📰 News Worthy

What is CVE-2026-42018?

JFrog Artifactory features a vulnerability that allows for the unintended return of an internal anonymous-user token to an unauthenticated user, even when anonymous access is meant to be disabled. This flaw could potentially lead to unauthorized access to sensitive resources, putting organizations at risk. It's crucial for users of JFrog Artifactory to remain vigilant and apply necessary updates and security measures to mitigate risks associated with this vulnerability.

CISA has reported CVE-2026-42018

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2026-42018 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Affected Version(s)

artifactory 0 < 7.111.20

artifactory 7.117.0 < 7.117.27

artifactory 7.125.0 < 7.125.19

News Articles

favicon imageBleepingComputer

Artifactory flaws chained in attacks deploying backdoor malware

Threat actors are exploiting critical and high-severity vulnerabilities in JFrog Artifactory to bypass authentication, gain administrative privileges, and deploy a Rust backdoor on vulnerable self-hosted servers.

12 hours ago

References

https://docs.jfrog.com/releases/docs/jfrog-security-advis...
vendor-advisory
https://docs.jfrog.com/releases/docs/artifactory-self-man...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • 📰

    First article discovered by BleepingComputer

  • Vulnerability published

  • Vulnerability Reserved

Credit

Daniil Vylegzhanin (NetSPI)
.