What’s Vulnerable › Vulnerabilities

CVE-2026-77525: MaxKB: Management chat-record routes trust path application_id but load ChatRecord by global chat_id

• Severity: medium (CVSS 4.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-21 · updated 2026-09-24
• Weakness: CWE-862

Description

MaxKB is an open-source AI assistant for enterprise. In 2.10.2-lts and earlier, management chat-record routes authorize the path application_id but load records using global chat_id and chat_record_id values without confirming that the chat belongs to the authorized application. A normal user in the same workspace who knows the chat_id of a persisted non-debug record for a victim's published application can place it under a separate attacker-owned application path to read victim chat records. An attacker with an owned knowledge base and document can also use add_knowledge to copy victim answers while updating the victim record's improve_paragraph_id_list. No fixed version is available as of this review.

Affected products

• 1Panel-dev MaxKB: through 2.10.2-lts

References

• https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-7fmh-98f2-2cfg
• https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-r6g6-69fh-c39q

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