CVE-2026-42018 (GCVE-0-2026-42018)
Vulnerability from cvelistv5 – Published: 2026-08-12 17:43 – Updated: 2026-09-11 19:58Title
Anonymous user token generation exposure in JFrog Artifactory
Summary
JFrog Artifactory could return an internal anonymous-user token to an unauthenticated caller when anonymous access is disabled, potentially exposing sensitive resources.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 15:05 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://docs.jfrog.com/releases/docs/jfrog-securi… | vendor-advisory |
| https://docs.jfrog.com/releases/docs/artifactory-… | vendor-advisory |
| https://www.wiz.io/blog/artifactory-under-attack-… | third-party-advisory |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| jfrog | artifactory |
Affected:
0 , < 7.111.20
(custom)
Affected: 7.117.0 , < 7.117.27 (custom) Affected: 7.125.0 , < 7.125.19 (custom) Affected: 7.133.0 , < 7.133.28 (custom) Affected: 7.146.0 , < 7.146.8 (custom) |
guessed |
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: c9519166-323e-490a-9953-a332398615ad
Exploited: Yes
Timestamps
First Seen: 2026-09-11
Asserted: 2026-09-11
Scope
Notes: JFrog Artifactory Improper Authentication Vulnerability | Affected: JFrog / Artifactory | Description: JFrog Artifactory contains an improper authentication vulnerability that could return an internal anonymous-user token to an unauthenticated caller when anonymous access is disabled, potentially exposing sensitive resources. | Required action: 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. | Due date: 2026-09-25 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://docs.jfrog.com/releases/docs/jfrog-security-advisories ; https://docs.jfrog.com/releases/docs/artifactory-self-managed-releases ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-42018
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-287 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | Artifactory |
| Due Date | 2026-09-25 |
| Date Added | 2026-09-11 |
| Vendorproject | JFrog |
| Vulnerabilityname | JFrog Artifactory Improper Authentication Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-09-11 19:00 UTC
| Updated: 2026-09-11 19:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 43719310-bca4-4146-99da-52be865a9473
Exploited: Yes
Timestamps
First Seen: 2026-09-10
Asserted: 2026-09-10
Scope
Notes: Anonymous user token generation exposure in JFrog Artifactory | Affected: Jfrog / artifactory | CVSS: 7.5 (HIGH) | EPSS: 0.00349 | Used in malware: unknown | Listed 23 hours ahead of CISA KEV | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: previdian
Details
| Feed | Previdian (previdian.com) |
|---|---|
| Title | Anonymous user token generation exposure in JFrog Artifactory |
| Cve Id | CVE-2026-42018 |
| Vendor | Jfrog |
| Ghsa Id | GHSA-3Q94-GPRH-7PWM |
| Product | artifactory |
| Added Date | 2026-09-10T19:04:00.000Z |
| Cvss Score | 7.5 |
| Epss Score | 0.00349 |
| Previous Ids | |
| Cvss Severity | HIGH |
| Virtual Patch | False |
| Cvss Estimated | False |
| Epss Percentile | 0.28044 |
| Used In Malware | unknown |
| Vulnerability Id | CVE-2026-42018 |
| Ahead Of Cisa Kev |
|
| Not Yet In Cisa Kev | False |
References
Created: 2026-09-11 20:01 UTC
| Updated: 2026-09-11 20:01 UTC
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-42018",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-13T15:05:05.752699Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2026-09-11",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-42018"
},
"type": "kev"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-11T19:58:24.026Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"third-party-advisory"
],
"url": "https://www.wiz.io/blog/artifactory-under-attack-in-the-wild-exploitation-of-cve-2026-42016-cve-2026-4201"
},
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-42018"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-09-11T00:00:00.000Z",
"value": "CVE-2026-42018 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "artifactory",
"vendor": "jfrog",
"versions": [
{
"lessThan": "7.111.20",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"lessThan": "7.117.27",
"status": "affected",
"version": "7.117.0",
"versionType": "custom"
},
{
"lessThan": "7.125.19",
"status": "affected",
"version": "7.125.0",
"versionType": "custom"
},
{
"lessThan": "7.133.28",
"status": "affected",
"version": "7.133.0",
"versionType": "custom"
},
{
"lessThan": "7.146.8",
"status": "affected",
"version": "7.146.0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Daniil Vylegzhanin (NetSPI)"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eJFrog Artifactory could return an internal anonymous-user token to an unauthenticated caller when anonymous access is disabled, potentially exposing sensitive resources.\u003c/p\u003e"
}
],
"value": "JFrog Artifactory could return an internal anonymous-user token to an unauthenticated caller when anonymous access is disabled, potentially exposing sensitive resources."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-287",
"description": "CWE-287 Improper Authentication",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-18T18:14:10.646Z",
"orgId": "48a46f29-ae42-4e1d-90dd-c1676c1e5e6d",
"shortName": "JFROG"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://docs.jfrog.com/releases/docs/jfrog-security-advisories"
},
{
"tags": [
"vendor-advisory"
],
"url": "https://docs.jfrog.com/releases/docs/artifactory-self-managed-releases"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Anonymous user token generation exposure in JFrog Artifactory",
"x_generator": {
"engine": "Vulnogram 1.0.4"
}
}
},
"cveMetadata": {
"assignerOrgId": "48a46f29-ae42-4e1d-90dd-c1676c1e5e6d",
"assignerShortName": "JFROG",
"cveId": "CVE-2026-42018",
"datePublished": "2026-08-12T17:43:21.289Z",
"dateReserved": "2026-04-23T13:41:13.755Z",
"dateUpdated": "2026-09-11T19:58:24.026Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-42018",
"date": "2026-09-11",
"epss": "0.00349",
"percentile": "0.28044"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-42018\",\"sourceIdentifier\":\"reefs@jfrog.com\",\"published\":\"2026-08-12T18:17:29.473\",\"lastModified\":\"2026-09-11T19:57:17.403\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"JFrog Artifactory could return an internal anonymous-user token to an unauthenticated caller when anonymous access is disabled, potentially exposing sensitive resources.\"}],\"affected\":[{\"source\":\"reefs@jfrog.com\",\"affectedData\":[{\"vendor\":\"jfrog\",\"product\":\"artifactory\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"7.111.20\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"7.117.0\",\"lessThan\":\"7.117.27\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"7.125.0\",\"lessThan\":\"7.125.19\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"7.133.0\",\"lessThan\":\"7.133.28\",\"versionType\":\"custom\",\"status\":\"affected\"},{\"version\":\"7.146.0\",\"lessThan\":\"7.146.8\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"reefs@jfrog.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-08-13T15:05:05.752699Z\",\"id\":\"CVE-2026-42018\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"cisaExploitAdd\":\"2026-09-11\",\"cisaActionDue\":\"2026-09-25\",\"cisaRequiredAction\":\"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA\u2019s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA\u2019s \u201cForensics Triage Requirements\u201d (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\u0027s internet exposure and ensuring adherence to BOD 26-04 patching guidelines.\",\"cisaVulnerabilityName\":\"JFrog Artifactory Improper Authentication Vulnerability\",\"weaknesses\":[{\"source\":\"reefs@jfrog.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-287\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:jfrog:artifactory:*:*:*:*:*:-:*:*\",\"versionEndExcluding\":\"7.111.20\",\"matchCriteriaId\":\"A3362EDD-29B3-4A8E-8C6B-C1E4B6801A7F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:jfrog:artifactory:*:*:*:*:*:-:*:*\",\"versionStartIncluding\":\"7.117.0\",\"versionEndExcluding\":\"7.117.27\",\"matchCriteriaId\":\"95C14B2A-24BF-4C81-A178-BBA744F9AB2A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:jfrog:artifactory:*:*:*:*:*:-:*:*\",\"versionStartIncluding\":\"7.125.0\",\"versionEndExcluding\":\"7.125.19\",\"matchCriteriaId\":\"F3D1E17C-2AE8-4B30-8802-68D75F4937B8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:jfrog:artifactory:*:*:*:*:*:-:*:*\",\"versionStartIncluding\":\"7.133.0\",\"versionEndExcluding\":\"7.133.28\",\"matchCriteriaId\":\"3751FB76-30AC-4EB7-AAC7-7D1A6215C59B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:jfrog:artifactory:*:*:*:*:*:-:*:*\",\"versionStartIncluding\":\"7.146.0\",\"versionEndExcluding\":\"7.146.8\",\"matchCriteriaId\":\"B8DDB685-DD49-4FD8-86C4-2852EBEBD5DE\"}]}]}],\"references\":[{\"url\":\"https://docs.jfrog.com/releases/docs/artifactory-self-managed-releases\",\"source\":\"reefs@jfrog.com\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://docs.jfrog.com/releases/docs/jfrog-security-advisories\",\"source\":\"reefs@jfrog.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-42018\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"US Government Resource\"]},{\"url\":\"https://www.wiz.io/blog/artifactory-under-attack-in-the-wild-exploitation-of-cve-2026-42016-cve-2026-4201\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"Third Party Advisory\"]}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-42018\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-13T15:05:05.752699Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2026-09-11\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-42018\"}}}], \"references\": [{\"url\": \"https://www.wiz.io/blog/artifactory-under-attack-in-the-wild-exploitation-of-cve-2026-42016-cve-2026-4201\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-42018\", \"tags\": [\"government-resource\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-13T15:05:13.966Z\"}, \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-09-11T00:00:00.000Z\", \"value\": \"CVE-2026-42018 added to CISA KEV\"}]}], \"cna\": {\"title\": \"Anonymous user token generation exposure in JFrog Artifactory\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Daniil Vylegzhanin (NetSPI)\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"jfrog\", \"product\": \"artifactory\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"7.111.20\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"7.117.0\", \"lessThan\": \"7.117.27\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"7.125.0\", \"lessThan\": \"7.125.19\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"7.133.0\", \"lessThan\": \"7.133.28\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"7.146.0\", \"lessThan\": \"7.146.8\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://docs.jfrog.com/releases/docs/jfrog-security-advisories\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://docs.jfrog.com/releases/docs/artifactory-self-managed-releases\", \"tags\": [\"vendor-advisory\"]}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.4\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"JFrog Artifactory could return an internal anonymous-user token to an unauthenticated caller when anonymous access is disabled, potentially exposing sensitive resources.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eJFrog Artifactory could return an internal anonymous-user token to an unauthenticated caller when anonymous access is disabled, potentially exposing sensitive resources.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-287\", \"description\": \"CWE-287 Improper Authentication\"}]}], \"providerMetadata\": {\"orgId\": \"48a46f29-ae42-4e1d-90dd-c1676c1e5e6d\", \"shortName\": \"JFROG\", \"dateUpdated\": \"2026-08-18T18:14:10.646Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-42018\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-11T19:58:24.026Z\", \"dateReserved\": \"2026-04-23T13:41:13.755Z\", \"assignerOrgId\": \"48a46f29-ae42-4e1d-90dd-c1676c1e5e6d\", \"datePublished\": \"2026-08-12T17:43:21.289Z\", \"assignerShortName\": \"JFROG\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Loading…
Loading…