CVE-2026-103664

MISP is vulnerable to reflected cross-site scripting (XSS) in the analyst data notes panel. The root cause is the lack of sanitization or type enforcement on the seed path parameter supplied via the URL, which is passed directly into inline JavaScript within the HTML response. An authenticated at...

CVE-2026-103662 MISP Reflected XSS in Taxonomy Tag Confirmation Forms

MISP contains a reflected cross-site scripting XSS vulnerability in the legacy taxonomy tag management confirmation forms add tag and disable tag. The affected forms echoed a user-supplied tag name value from the request unescaped into the rendered HTML output. An attacker who can induce a site...

CVE-2026-103662

A reflected cross-site scripting (XSS) vulnerability exists in the MISP legacy taxonomy tag management confirmation forms (specifically the add tag and disable tag forms). The flaw is caused by the application echoing a user-supplied tag name value from the request into the rendered HTML output w...

CVE-2026-103662 MISP Reflected XSS in Taxonomy Tag Confirmation Forms

MISP contains a reflected cross-site scripting XSS vulnerability in the legacy taxonomy tag management confirmation forms add tag and disable tag. The affected forms echoed a user-supplied tag name value from the request unescaped into the rendered HTML output. An attacker who can induce a site...

CVE-2026-103662 MISP Reflected XSS in Taxonomy Tag Confirmation Forms

MISP contains a reflected cross-site scripting XSS vulnerability in the legacy taxonomy tag management confirmation forms add tag and disable tag. The affected forms echoed a user-supplied tag name value from the request unescaped into the rendered HTML output. An attacker who can induce a site...

EUVD-2026-90577

MISP contains a reflected cross-site scripting XSS vulnerability in the legacy taxonomy tag management confirmation forms add tag and disable tag. The affected forms echoed a user-supplied tag name value from the request unescaped into the rendered HTML output. An attacker who can induce a site...

CVE-2026-103659

MISP contains an authorization bypass in the event flattening feature. When a user requests an event with the flatten option enabled, the application removes the Object containment from the query and returns object attributes as top-level event attributes. In doing so, the object-level distributi...

CVE-2026-103659 MISP: Object Distribution ACL Bypass via Event Flattening Exposes Organisation-Only Attributes

MISP contains an authorization bypass in the event flattening feature. When a user requests an event with the flatten option enabled, the application removes the Object containment from the query and returns object attributes as top-level event attributes. In doing so, the object-level distributi...

CVE-2026-103659 MISP: Object Distribution ACL Bypass via Event Flattening Exposes Organisation-Only Attributes

MISP contains an authorization bypass in the event flattening feature. When a user requests an event with the flatten option enabled, the application removes the Object containment from the query and returns object attributes as top-level event attributes. In doing so, the object-level distributi...

EUVD-2026-90575

MISP contains an authorization bypass in the event flattening feature. When a user requests an event with the flatten option enabled, the application removes the Object containment from the query and returns object attributes as top-level event attributes. In doing so, the object-level distributi...

CVE-2026-103659

MISP versions prior to 2.5.48 are vulnerable to an authorization bypass within the event flattening feature. When a user requests an event with the flatten option enabled, the application removes Object containment from the query and returns object attributes as top-level attributes without re-ap...

CVE-2026-103659 MISP: Object Distribution ACL Bypass via Event Flattening Exposes Organisation-Only Attributes

MISP contains an authorization bypass in the event flattening feature. When a user requests an event with the flatten option enabled, the application removes the Object containment from the query and returns object attributes as top-level event attributes. In doing so, the object-level distributi...

CVE-2026-103651

MISP contains a vulnerability in its one-time password OTP authentication flow that allows replay of a consumed HOTP paper token and rewinding of the token counter. The HOTP verification logic compared the submitted token against a counter value that was cached in the user's session at the time t...

CVE-2026-103655 MISP TOTP Code Replay Allows Duplicate Authentication Within Validity Period

MISP contains a vulnerability in its two-factor authentication TOTP verification process that permits a valid one-time code to be accepted more than once within its time-based validity window. The issue exists in the user login flow where a TOTP code is verified as a second authentication factor...

CVE-2026-103655 MISP TOTP Code Replay Allows Duplicate Authentication Within Validity Period

MISP contains a vulnerability in its two-factor authentication TOTP verification process that permits a valid one-time code to be accepted more than once within its time-based validity window. The issue exists in the user login flow where a TOTP code is verified as a second authentication factor...

EUVD-2026-90550

MISP contains a vulnerability in its two-factor authentication TOTP verification process that permits a valid one-time code to be accepted more than once within its time-based validity window. The issue exists in the user login flow where a TOTP code is verified as a second authentication factor...

CVE-2026-103655 MISP TOTP Code Replay Allows Duplicate Authentication Within Validity Period

MISP contains a vulnerability in its two-factor authentication TOTP verification process that permits a valid one-time code to be accepted more than once within its time-based validity window. The issue exists in the user login flow where a TOTP code is verified as a second authentication factor...

CVE-2026-103655

The MISP platform (versions

EUVD-2026-90542

MISP contains a vulnerability in its one-time password OTP authentication flow that allows replay of a consumed HOTP paper token and rewinding of the token counter. The HOTP verification logic compared the submitted token against a counter value that was cached in the user's session at the time t...

CVE-2026-103651 MISP HOTP Token Replay via Stale Session-Cached Counter Allows Second-Factor Authentication Bypass

MISP contains a vulnerability in its one-time password OTP authentication flow that allows replay of a consumed HOTP paper token and rewinding of the token counter. The HOTP verification logic compared the submitted token against a counter value that was cached in the user's session at the time t...