CVE-2026-111638

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

0.39% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 33.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

Deferred. NVD last modified this record on 2026-10-23.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2026-10-16 17:39Z12 DAYS AGO

Last updated

2026-10-23 16:11Z5 DAYS AGO

Reserved

2026-10-16

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 8.3)

CNA CVSS vector

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

Weaknesses

• CWE-862Missing AuthorizationClass

Data version

5.2

Document digest

62cbd0791272a416100e34db53c3284a1c13a03de7fec502a8e04da6354c2dd2

• hackmd.iohttps://hackmd.io/@hieuPenguinnn/sshportal-key-show-privkey-disclosurethird-party-advisory
• github.comhttps://github.com/moul/sshportal/blob/v1.19.5/pkg/bastion/shell.go#L1513-L1584technical-description
• www.vulncheck.comVulnCheck Advisory: sshportal through 1.19.5 Missing Authorization in 'key show' Command Exposes Private Keyshttps://www.vulncheck.com/advisories/sshportal-through-1.19.5-missing-authorization-in-key-show-command-exposes-private-keysthird-party-advisory