How severe is CVE-2026-27482?

CVE-2026-27482 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability high.

Is CVE-2026-27482 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27482?

CVE-2026-27482 affects Anyscale Ray. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27482?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-27482 have an EU (EUVD) identifier?

Yes. CVE-2026-27482 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7716.

When was CVE-2026-27482 published?

CVE-2026-27482 was published on 2026-02-21 and last updated on 2026-06-17.

CVE-2026-27482

CVE-2026-27482 is a medium-severity vulnerability in Anyscale Ray with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-396.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7716
Weakness: CWE-396
Affected product: Anyscale Ray
Published: 2026-02-21
Last modified: 2026-06-17

Description

Ray is an AI compute engine. In versions 2.53.0 and below, thedashboard HTTP server blocks browser-origin POST/PUT but does not cover DELETE, and key DELETE endpoints are unauthenticated by default. If the dashboard/agent is reachable (e.g., --dashboard-host=0.0.0.0), a web page via DNS rebinding or same-network access can issue DELETE requests that shut down Serve or delete jobs without user interaction. This is a drive-by availability impact. The fix for this vulnerability is to update to Ray 2.54.0 or higher.

Frequently asked questions

What is CVE-2026-27482?: Ray is an AI compute engine. In versions 2.53.0 and below, thedashboard HTTP server blocks browser-origin POST/PUT but does not cover DELETE, and key DELETE endpoints are unauthenticated by default. If the dashboard/agent is reachable (e.g., --dashboard-host=0.0.0.0), a web page via DNS rebinding or same-network access can issue DELETE requests that shut down Serve or delete jobs without user interaction. This is a drive-by availability impact. The fix for this vulnerability is to update to Ray 2.54.0 or higher.
How severe is CVE-2026-27482?: CVE-2026-27482 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability high.
Is CVE-2026-27482 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27482?: CVE-2026-27482 affects Anyscale Ray. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27482?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-27482 have an EU (EUVD) identifier?: Yes. CVE-2026-27482 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7716.
When was CVE-2026-27482 published?: CVE-2026-27482 was published on 2026-02-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:anyscale:ray:*:*:*:*:*:*:*:*

More vulnerabilities in Anyscale Ray

CVE-2023-48022 — Critical (CVSS 9.8): Anyscale Ray 2.6.3 and 2.8.0 allows a remote attacker to execute arbitrary code via the job submission API. NOTE: the…
CVE-2023-48023 — Critical (CVSS 9.1): Anyscale Ray 2.6.3 and 2.8.0 allows /log_proxy SSRF. NOTE: the vendor's position is that this report is irrelevant…
CVE-2026-57516 — High (CVSS 8.8): Ray prior to 2.56.0 contains an unsafe deserialization vulnerability in the WebDataset reader that allows attackers to…
CVE-2026-41486 — High (CVSS 8.8): Ray is an AI compute engine. From version 2.54.0 to before version 2.55.0, Ray Data registers custom Arrow extension…
CVE-2026-32981 — High (CVSS 7.5): A path traversal vulnerability was identified in Ray Dashboard (default port 8265) in Ray versions prior to 2.8.1. Due…

All CVEs affecting Anyscale Ray →

Other CWE-396 vulnerabilities

CVE-2026-40149 — High (CVSS 7.9): PraisonAI is a multi-agent teams system. Prior to 4.5.128, the gateway's /api/approval/allow-list endpoint permits…

Browse all CWE-396 vulnerabilities →