CVE-2026-57516

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.85% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 58.0% of scored records. A rank, not a probability.

NVD base score

8.6 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-25.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-07-01 16:36Z4 MO AGO

Last updated

2026-10-08 15:23Z21 DAYS AGO

Reserved

2026-06-24

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 8.6)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Weaknesses

• CWE-502Deserialization of Untrusted DataBase

Data version

5.2

Document digest

346d54e166c49b51974faa98c95b3f4eb8d9b3fc540848690a8e17703c2ce683

• github.comRelease Noteshttps://github.com/ray-project/ray/releases/tag/ray-2.56.0release-notes
• github.comGitHub Security Advisory (GHSA-hhrp-gw25-jr43)https://github.com/ray-project/ray/security/advisories/GHSA-hhrp-gw25-jr43vendor-advisory
• github.comFix PR (1)https://github.com/ray-project/ray/pull/63469patchissue-tracking
• github.comFix PR (2)https://github.com/ray-project/ray/pull/63470patchissue-tracking
• www.vulncheck.comhttps://www.vulncheck.com/advisories/ray-unsafe-deserialization-rce-via-webdataset-readerthird-party-advisory