CVE-2026-100868

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

0.53% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 44.8% 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:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/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

Deferred. NVD last modified this record on 2026-10-08.

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

2026-09-27 13:09Z1 MO AGO

Last updated

2026-10-08 15:22Z21 DAYS AGO

Reserved

2026-09-27

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-1327Binding to an Unrestricted IP AddressBase

Data version

5.2

Document digest

1cbca655721fb6ec721736047b57694682ebfcd53d679d81b128de151e496f0f

• github.comGitHub Security Advisory (GHSA-ch2q-6x56-qg5r)https://github.com/penpot/penpot/security/advisories/GHSA-ch2q-6x56-qg5rvendor-advisory
• github.comhttps://github.com/penpot/penpot/commit/b5274a44766d095247037be18c1d1918ac67ddebpatch
• github.comhttps://github.com/penpot/penpot/blob/1d2c37e52c733f74017d90b0fd1ae2d074a5c33d/mcp/packages/server/src/PluginBridge.ts#L52technical-description
• github.comGitHub Security Advisory (GHSA-22qr-rp27-j9wm)https://github.com/penpot/penpot/security/advisories/GHSA-22qr-rp27-j9wmrelatedvendor-advisory
• github.comhttps://github.com/penpot/penpotproduct
• www.vulncheck.comVulnCheck Advisory: Penpot before 2.18.0 Unauthenticated WebSocket Access via MCP Bridgehttps://www.vulncheck.com/advisories/penpot-before-2.18.0-unauthenticated-websocket-access-via-mcp-bridgethird-party-advisory