CVE Vulnerability Catalog

Discourse is an open-source discussion platform. Prior to 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0, the topic small-action and nested-activity-log components interpolated the free-form action_code_who value into mention-link href attributes without URL encoding. A quote-bearing display name could terminate the intended URL attribute and inject attacker-controlled elements into the trusted rendered markup. Although the visible mention text was escaped, the unencoded path component allowed stored HTML injection when another user viewed the affected topic action or activity log. This issue is fixed in versions 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0.

In ESP-IDF versions 5.5.5, 6.0.1, and 6.1, the BlueDroid A2DP sink function btc_a2dp_sink_handle_inc_media() reads a timestamp field from the media buffer before validating that the packet contains that field. A paired BR/EDR audio source within radio range can send a malformed A2DP packet, causing an out-of-bounds read into adjacent heap memory and limited disclosure of heap contents.

In Wazuh from 3.8.0 until 4.14.7, the _getattributes() function in src/os_xml/os_xml.c recursively processes every XML attribute without a depth limit while allocating two large local buffers per stack frame. An enrolled agent can submit a Windows EventChannel event with an element containing enough attributes to exhaust the analysisd worker-thread stack, causing a segmentation fault and interrupting log ingestion.

xhtml-purifier versions prior to 0.4.3 do not HTML-entity-encode attribute values when serializing sanitized output. In attributeString() the attribute value is concatenated directly into a double-quoted attribute, so an attacker-controlled value can include a double-quote to break out and inject an additional attribute, such as a JavaScript event handler.

In Python Social Auth prior to version 5.0.0, the partial-pipeline resume mechanism accepted partial_token as a bearer credential without binding it to the browser session that created it. Applications using resumable partial pipeline steps could allow an attacker to start an authentication flow and cause a victim's browser to resume that attacker-controlled flow.

In Python Social Auth prior to version 5.0.0, the LoginRadius backend did not validate OAuth state during the authentication flow. Applications using this backend were vulnerable to login CSRF, and an attacker could cause a victim's browser session to complete authentication using an attacker-controlled LoginRadius token.

In Python Social Auth prior to version 5.0.0, the Vend OAuth2 backend used only the numeric Vend user_id as the social-auth UID. When multiple Vend shops authenticate through the same application, users from different shops with the same internal Vend user ID could collide in the social-auth association table.

In Python Social Auth prior to version 5.0.0, the SAML backend accepted SAML responses on the Assertion Consumer Service endpoint without verifying that they matched a previously issued AuthnRequest. Applications using SAML account association could allow an attacker with a valid account on a trusted IdP to link the attacker's SAML identity to a logged-in victim's local account.

In Habitica from 4.172.1 until 5.48.2, a query parameter on the /api/v3/groups/:groupId/members route is not sanitized before being interpreted as a regular expression. An authenticated caller can supply a computationally expensive regular expression that degrades application performance or halts Node.js processes.

An out-of-bounds read in libXi's XListInputDevices() class parsing in libXi before 1.8.4 could be used by malicious X servers to crash an attached X client.

An out-of-bounds read in libXi's XListInputDevices() in libXi before 1.8.4 could be used by malicious X servers to crash an attached X client.

An out-of-bounds read in libXi's XI2 XIQueryDevice reply parsing in libXi before 1.8.4 can be used by a malicious X server to crash an attached X client.

An out-of-bounds read in libXi's XI2 class parsing via size_classes() and copy_classes() in libXi before 1.8.4 could be used by malicious servers to crash the X client.

OpenWA before version 0.23.5 allows a user with a VIEWER key to retrieve a group invite code without the OPERATOR role requirement. The invite code is transferable, so an unauthorized account can join the group, read and post messages, and retain membership after the VIEWER key is revoked.

Discourse before certain versions allowed a stored cross-origin iframe to bypass the allowed_iframes prefix policy when the iframe src contained encoded userinfo. An authenticated user with posting privileges could persist the iframe in a post, causing attacker-controlled cross-origin content to be rendered.

Discourse before certain versions allowed authenticated users to supply unescaped SQL LIKE wildcard characters in upload-resolution patterns, causing unrelated upload records to be selected. Access to restricted metadata, including original filenames and secure-upload paths, was possible without modifying the records.

Discourse before certain versions, when wildcard patterns were used in the allowed_iframes setting, could accept a crafted iframe URL whose allowlisted suffix appeared after a URL authority separator. The origin check was bypassed, and the browser selected a different attacker-controlled origin, allowing an attacker-controlled iframe to be rendered.

Mini-XML 4.0.5 contains a memory leak vulnerability in mxml_load_data() during malformed XML parsing. Specially crafted XML input can cause text nodes allocated by mxmlNewText() to become unlinked before a parse error transfers control to the cleanup path. These orphaned nodes are not released, resulting in a persistent memory leak on each parsing attempt.

OpenEXR 3.4.14 contains a NULL Pointer Dereference in the C++ attribute parsing path. A specially crafted EXR file containing an unknown-type attribute with dataSize set to zero causes the parser to create an opaque attribute with a NULL packed_data pointer. The OpaqueAttribute constructor passes the NULL pointer to memcpy() without validating the zero-size condition, resulting in undefined behavior and process termination.

libical 4.0.6 contains an incompatible function pointer in icalparameter_string_to_kind(). When parsing iCalendar data containing a parameterized property, the function passes icalparameter_compare_kind_map() to bsearch() through an incompatible comparator function pointer type. bsearch() invokes the callback through the mismatched type, resulting in undefined behavior and process termination.