CVE•Published 2026-07-09•Modified 2026-07-10•1 article on news•6 live references•NVD data
CVE-2026-55604
Vulnerability data via NVD (ingested)
CVSS v3.1
8.6
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
EPSS percentile
—
Weaknesses (CWE)
Description
DeepSeek MCP Server is an MCP server for DeepSeek V4. Starting in version 1.4.2 and prior to version 1.7.0, the process-global `SessionStore` accepts caller-supplied `session_id` values without binding them to any authenticated principal or transport session. An attacker can enumerate active session IDs via `deepseek_sessions`, then reuse a victim-controlled `session_id` in `deepseek_chat` to retrieve and continue the victim's conversation context. Version 1.7.0 contains a patch.
Timeline
Published 2026-07-09
Modified 2026-07-10
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-55604Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-55604Censys host search filtered to this CVE id.
grep.app
CVE-2026-55604Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-55604GitHub code search for direct mentions.
Google dork
"CVE-2026-55604" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.