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-2026-103651 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...

CVE-2026-103651

MISP (versions

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...

CVE-2026-103237

creationtimestamp| type| source ---|---|--- 2026-10-01 00:32:54+00:00| seen| https://www.acn.gov.it/portale/w/risolte-vulnerabilita-in-misp-2...

CVE-2026-103235

creationtimestamp| type| source ---|---|--- 2026-10-01 00:32:54+00:00| seen| https://www.acn.gov.it/portale/w/risolte-vulnerabilita-in-misp-2...

CVE-2026-103662: Improper Neutralization of Input During Web Page Generation

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-2026-103655: Authentication Bypass by Capture-replay

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-2026-103858: Improper Authorization

MISP contains an incomplete authorization check in the discussion posting functionality. When a user submits a post to a thread or replies to an existing post, the application only verified whether the target thread was restricted to a single organization org-only distribution. It did not enforce...

CVE-2026-103664: Improper Neutralization of Input During Web Page Generation

MISP contains a reflected cross-site scripting XSS vulnerability in the analyst data notes panel. The seed path parameter, supplied by the user via the URL, was passed directly into inline JavaScript within the rendered HTML response without any sanitization or type enforcement. An attacker who c...

CVE-2026-103659: Missing Authorization

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: Concurrent Execution using Shared Resource with Improper Synchronization

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...

PT-2026-103759

MISP contains a reflected cross-site scripting XSS vulnerability in the analyst data notes panel. The seed path parameter, supplied by the user via the URL, was passed directly into inline JavaScript within the rendered HTML response without any sanitization or type enforcement. An attacker who c...

PT-2026-103734

Name of the Vulnerable Software and Affected Versions MISP versions prior to 2.5.48 Description A flaw in the two-factor authentication TOTP verification process allows a valid one-time code to be accepted multiple times within its time-based validity window, typically 30 seconds. This occurs...

PT-2026-103735

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...

PT-2026-103758

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...

PT-2026-103713

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...

PT-2026-103840

MISP contains an incomplete authorization check in the discussion posting functionality. When a user submits a post to a thread or replies to an existing post, the application only verified whether the target thread was restricted to a single organization org-only distribution. It did not enforce...

CVE-2026-103389

MISP contains a stored cross-site scripting XSS vulnerability in the galaxy icon handling path. The icon field of a galaxy object was persisted without any server-side validation through the galaxy add, edit, and sync/import capture endpoints. The stored value was subsequently concatenated direct...

CVE-2026-103388

MISP renders the source field of a Galaxy Cluster as a clickable hyperlink whenever the stored value passes PHP's FILTERVALIDATEURL validation. Because FILTERVALIDATEURL accepts the javascript: URI scheme, a user with galaxy editor privileges on the local instance or on a synced instance could...