CVE-2026-63308

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 ImpactpartialSuccessful exploitation gives limited 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

0.48% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 41.5% of scored records. A rank, not a probability.

NVD base score

5.3 (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:P/VC:N/VI:N/VA:L/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 2026-07-30.

Red Hat severity

Moderate. 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

2026-07-17 16:14Z3 MO AGO

Last updated

2026-07-17 17:25Z3 MO AGO

Reserved

2026-07-16

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-129Improper Validation of Array IndexVariant
• CWE-1285Improper Validation of Specified Index, Position, or Offset in InputBase

Data version

5.2

Document digest

43726b7319ffeaaf14f98070ce3e4d2e43eff75eb2bfd031a258db4dcf768cf5

• github.comResearcher Disclosurehttps://github.com/helm/helm/issues/32279technical-descriptionexploit
• github.comPull Requesthttps://github.com/helm/helm/pull/32290issue-tracking
• github.comPatch Commithttps://github.com/helm/helm/commit/ba6c9a29efa7bf9198dad6a5ec12b4fb30c96017patch
• www.vulncheck.comhttps://www.vulncheck.com/advisories/chat2db-insecure-direct-object-reference-via-get-api-connection-datasourcethird-party-advisory