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CVE-2026-42018· NVD / CVE Program· CNA JFROG

Anonymous user token generation exposure in JFrog Artifactory

Noroxi assessment

Priority: This week (action score 63/100)

  • CISA has confirmed exploitation in the wild (Sep 11, 2026). Remediation deadline for US federal agencies: Sep 25, 2026.
  • A ready-made attack module is public (Nuclei); exploiting it takes no special expertise.
  • Probability of exploitation in the next 30 days: 9.8% (FIRST EPSS); higher than 95.4% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • According to the record, no fixed version is available yet.

Don’t wait for the next maintenance window. Until a fix is released, restrict access to the affected component and follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

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

HighCVSS 7.5 · v3.1KEVWeaponized No fix recorded
Published
Aug 12, 2026
Updated
Oct 1, 2026
EPSS
9.8% · 95th percentile

Report tools

JSON

Action score

63

This week

Don’t wait for the next maintenance window.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
30 / 30 · Listed
EPSS
3 / 30 · 9.8%

CISA SSVC decision

Exploitation
active
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · JFROG
7.5
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Sep 11, 2026. That signals real attacks, not theory.

Remediation deadline for government agencies: Sep 25, 2026.

Get told when this record changes

  • In CISA KEV: exploitation in the wild confirmed
  • Weaponized exploit exists
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-42018

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
jfrogartifactory

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • jfrog artifactorybefore 7.111.20
  • jfrog artifactory7.117.0 and later · before 7.117.27
  • jfrog artifactory7.125.0 and later · before 7.125.19
  • jfrog artifactory7.133.0 and later · before 7.133.28
  • jfrog artifactory7.146.0 and later · before 7.146.8

Versions reported by the vendor

Affected version ranges reported by the assigning authority (JFROG). Independent of NVD's CPE analysis and usually ahead of it.

  • jfrog artifactory

    • before 7.111.20affected
    • 7.117.0 and later · before 7.117.27affected
    • 7.125.0 and later · before 7.125.19affected
    • 7.133.0 and later · before 7.133.28affected
    • 7.146.0 and later · before 7.146.8affected

Same product

jfrog: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-82329Potential authentication bypass leading to administrative access in ArtifactoryKEV
    73This week
  • CVE-2026-42016Incorrect authorization validation of user token in JFrog Artifactory allows Privilege EscalationKEV
    68This week
  • CVE-2019-17444JFrog Artifactory does not enforce default admin password change
    60This week
  • CVE-2019-9733An issue was discovered in JFrog Artifactory 6.7.3.
    55Plan
  • CVE-2026-66384Authenticated users may write data outside the intended Docker cache pathKEV
    51Plan
  • CVE-2016-10036Unrestricted file upload vulnerability in ui/artifact/upload in JFrog Artifactory before 4.16 allows remote attackers to (1) deploy an arbit
    47Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Nuclei detection template ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Nuclei detection templateNuclei template CVE-2026-42018 —

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. CISA KEV+29 d
  3. TodayOct 14, 2026+63 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-8232916 days apartPotential authentication bypass leading to administrative access in ArtifactoryKEV
    73This week
  • CVE-2026-6601416 days apartPotential authentication bypass leading to privilege escalation in Artifactory
    35Monitor
  • CVE-2026-687600 days apartPotential remember-me authentication bypass in JFrog Artifactory
    21Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

  • CVE-2026-663840 days apartAuthenticated users may write data outside the intended Docker cache pathKEV
    51Plan
  • CVE-2026-687560 days apartPotential insecure deserialization in JFrog Artifactory
    26Monitor
  • CVE-2026-663810 days apartRepository readers may access content outside configured upstream paths
    21Monitor
  • CVE-2026-663820 days apartAuthenticated users may write files outside the intended Artifactory work directory
    17Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

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

nvd-secondary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
app.use("/admin", requireSession, adminRouter);
// Route added later skips the middlewareapp.post("/admin-api/config", updateConfig);

Fixed

ts
const admin = express.Router();admin.use(requireSession, requireRole("admin"));
admin.post("/config", updateConfig);app.use("/admin", admin);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Show all references (3 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records