Vulnerability report

Exploited in the wild Confirmed confidence In CISA KEV

CVE-2026-42018

Anonymous user token generation exposure in JFrog Artifactory

Jfrog / artifactory · affected before 7.111.20

View live feed Monitor via API Watch CVE-2026-42018
Severity
CVSS 7.5 · High
Confidence
Confirmed
Exploit status
Exploited in the wild
EPSS
0.3%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2026-42018 is an unauthenticated Anonymous user token generation exposure in JFrog Artifactory. JFrog Artifactory could return an internal anonymous-user token to an unauthenticated caller when anonymous access is...

Is it exploited?

Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is confirmed. Listed in CISA KEV. Also confirmed by third-party sources.

Who is affected?

Jfrog / artifactory affected before 7.111.20.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

Anonymous user token generation exposure in JFrog Artifactory

JFrog Artifactory could return an internal anonymous-user token to an unauthenticated caller when anonymous access is disabled, potentially exposing sensitive resources.

Vendor Product Affected Status
jfrog artifactory Before 7.111.20 Affected
jfrog artifactory Before 7.117.27 Affected
jfrog artifactory Before 7.125.19 Affected
jfrog artifactory Before 7.133.28 Affected
jfrog artifactory Before 7.146.8 Affected
View vendor advisory (opens in new tab)
Published
12 Aug 2026
Exploitation Reported
10 Sep 2026
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
None

Tags

cisa

CVE References

Exploitation evidence

Why Previdian marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

Wiz

Recorded 10 Sep 2026

A trusted third party reported exploitation.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

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Source Added
Wiz First 2026-09-10 19:04 UTC
CISA 2026-09-11 18:30 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts
0
0
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

No detection artifacts or sensor request patterns are available for this CVE yet.

Check back as sensor telemetry and scanner integrations are updated.

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

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

EPSS

0.3%

Weaknesses

Improper Authentication CWE-287

Recent mention · TheRegister

More JFrog Artifactory bugs under attack, and all 3 have patches

If you're waiting for a sign to upgrade to a fixed version: this is it

Read full advisory

All Mentions

Recent mention · TheRegister

More JFrog Artifactory bugs under attack, and all 3 have patches

TheRegister · 11 Sep 2026

If you're waiting for a sign to upgrade to a fixed version: this is it

Recent mention · Wiz

Artifactory Under Attack: In-the-Wild Exploitation of CVE-2026-42016, CVE-2026-42018 & CVE-2026-82329

Wiz · 10 Sep 2026

Wiz Research has identified active, in-the-wild exploitation of three critical and high-severity vulnerabilities impacting JFrog Artifactory (CVE-2026-42016, CVE-2026-42018 & CVE-2026-82329). Attackers are chaining these vulnerabilities to bypass authentication and gain administrative control.

Timeline

From disclosure to observed exploitation

  1. Added to CISA KEV

    Listed in the CISA Known Exploited Vulnerabilities catalog

  2. Added to Previdian KEV Feed

    High-confidence, third-party attested exploitation

  3. Added to the Previdian watchlist

    Pro and Enterprise Watch users had 4 weeks of early warning before CISA KEV. Also 4 weeks before Previdian confirmed it as a KEV.

  4. CVE published

    Vulnerability disclosed publicly

  5. CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2026-42018

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2026-42018",
  "confidence": "Confirmed",
  "cvss_score": 7.5,
  "cvss_estimated": false,
  "epss_score": 0.00349,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}