What it is
CVE-2023-48022 is an unauthenticated vulnerability affecting Anyscale Ray. Anyscale Ray 2.6.3 and 2.8.0 allows a remote attacker to execute arbitrary code via the job submission API. NOTE: the vendor's position is...
Vulnerability report
Exploited in the wild
High confidence
Not in CISA KEV
CVE-2023-48022
Ray
Anyscale / Ray · 2.6.3
- Severity
- CVSS 9.8 · Critical
- Confidence
- High
- Exploit status
- Exploited in the wild
- EPSS
- 83.9%
- First observed
- —
- Last observed
- —
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Is it exploited?
Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is high. Also confirmed by third-party sources.
Who is affected?
Anyscale / Ray 2.6.3.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
Anyscale Ray 2.6.3 and 2.8.0 allows a remote attacker to execute arbitrary code via the job submission API
Anyscale Ray 2.6.3 and 2.8.0 allows a remote attacker to execute arbitrary code via the job submission API. NOTE: the vendor's position is that this report is irrelevant because Ray, as stated in its documentation, is not intended for use outside of a strictly controlled network environment.
(Also, within that environment, customers at version 2.52.0 and later can choose to use token authentication.)
Vendor
Product
Affected
Status
anyscale
Affected
ray
2.6.3
2.8.0
Affected
- Published
- 28 Nov 2023
- Exploitation Reported
- 02 Jul 2026
- Attack vector
- Remote
- Complexity
- Low
- Privileges
- None
- User interaction
- None
Tags
nuclei_scanner
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2023-48022
- bishopfox.com/blog/ray-versions-2-6-3-2-8-0 bishopfox.com · CVE Record https://bishopfox.com/blog/ray-versions-2-6-3-2-8-0
- docs.ray.io/en/latest/ray-security/index.html docs.ray.io · CVE Record https://docs.ray.io/en/latest/ray-security/index.html
- vicarius.io/vsociety/posts/shadowray-cve-2023-48022-exploit vicarius.io · CVE Record https://www.vicarius.io/vsociety/posts/shadowray-cve-2023-48022-exploit
- atlas.mitre.org/studies/AML.CS0023 atlas.mitre.org · CVE Record https://atlas.mitre.org/studies/AML.CS0023
- docs.ray.io/en/latest/ray-security/token-auth.html docs.ray.io · CVE Record https://docs.ray.io/en/latest/ray-security/token-auth.html
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
The Shadowserver
A trusted third party reported exploitation.
Proof of concept available
GitHub
Public scanner or PoC coverage increases practical exploitability.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the Previdian Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| The Shadowserver First | 2025-11-20 17:26 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
Nuclei template detected 01 Jun 2026.
View Nuclei template (opens in new tab)Virtual patch status
No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →Scanner Artifacts
Scanner and exploit-framework references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-48022.yaml | 01 Jun 2026 |
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/ray_agent_job_rce.rb | 28 Apr 2025 |
| Nessus | https://www.tenable.com/plugins/nessus/193561 | 19 Apr 2024 |
Risk and context
Severity, weaknesses, and research context
CVSS v3.1
9.8
Critical
Potential damage if exploited. Separate from whether attackers are using it.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
83.9%
Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.
Weaknesses
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
Anyscale Ray - Remote Code Execution
nuclei · Created Unknown
Timeline
From disclosure to observed exploitation
-
15:34 UTC
Nuclei template available
Scanner coverage available
-
17:26 UTC
Added to Previdian KEV Feed
High-confidence, third-party attested exploitation
-
15:02 UTC
Metasploit module available
Exploit module available
-
15:02 UTC
Public PoC available
Public proof-of-concept code published
-
09:14 UTC
Nessus plugin available
Scanner coverage available
-
00:00 UTC
CVE published
Vulnerability disclosed publicly
-
00:00 UTC
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.
- 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-2023-48022
Free JSON includes basic KEV fields{
"cve_id": "CVE-2023-48022",
"confidence": "High",
"cvss_score": 9.8,
"cvss_estimated": false,
"epss_score": 0.83942,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}