CVE-2026-108852

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• 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

0.18% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 7.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/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 2026-10-16.

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

2026-10-11 13:26Z17 DAYS AGO

Last updated

2026-10-13 16:59Z15 DAYS AGO

Reserved

2026-10-11

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Low (CVSS 2.1)

CNA CVSS vector

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

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.2

Document digest

d813dc60d14d400a6572686777c2e258ed04fcf006fd22d9845eb9679997b856

• hackmd.iohttps://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/ovidijusparsiunas-deep-chat-markdown-scheme-validationthird-party-advisory
• github.comhttps://github.com/OvidijusParsiunas/deep-chat/blob/2.5.1/component/src/views/chat/messages/remarkable/remarkableConfig.ts#L74-L78technical-description
• github.comhttps://github.com/OvidijusParsiunas/deep-chatproduct
• www.vulncheck.comVulnCheck Advisory: Deep Chat through 2.5.1 XSS via Markdown Link Validation Bypasshttps://www.vulncheck.com/advisories/deep-chat-through-2.5.1-xss-via-markdown-link-validation-bypassthird-party-advisory