PYSEC-2026-4142 PyJWT: Uncaught RecursionError in jwt.decode() on deeply nested token header

Package pyjwt PyPI Affected versions tested & verified on: 2.13.0. Every version whose PyJWS.load translates only ValueError is affected Description PyJWS.looad jwt/apijws.py:337 splits the compact token, base64url decodes the header segment and hands it to json.loads before verifysignature runs...

MCP Atlassian: OAuth fallback token storage writes plaintext access and refresh tokens with group-readable permissions

SummaryWhen OAuth tokens are saved, MCP Atlassian always writes a plaintext fallback copy under /.mcp-atlassian/oauth-.json. The fallback file is created with the process default umask rather than restrictive permissions. In this environment the file was created as mode 0664, exposing access and...

Security Bulletin: IBM webMethods BPM is vulnerable to a denial of service due to jackson-databind

Summary IBM webMethods BPM uses Jackson Databind to serialize and deserialize JSON data between BPM processes, REST APIs, and Java objects. Vulnerability Details CVEID:CVE-2026-59888 DESCRIPTION: jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson...

CVE-2026-103292

Ghost versions from 0.5.3 through versions prior to 6.50.0 fail to sanitize the data placed in the JSON-LD HTML tag emitted by the ghosthead helper. An authenticated user with limited privileges can inject unescaped content that is rendered as script in the published page, potentially leading to...

EUVD-2026-90685

Ghost versions from 0.5.3 through versions prior to 6.50.0 fail to sanitize the data placed in the JSON-LD HTML tag emitted by the ghosthead helper. An authenticated user with limited privileges can inject unescaped content that is rendered as script in the published page, potentially leading to...

CVE-2026-103292 Ghost 0.5.3 before 6.50.0 Cross-Site Scripting via ghost_head

Ghost versions from 0.5.3 through versions prior to 6.50.0 fail to sanitize the data placed in the JSON-LD HTML tag emitted by the ghosthead helper. An authenticated user with limited privileges can inject unescaped content that is rendered as script in the published page, potentially leading to...

Resource Allocation

com.github.java-json-tools, jackson-coreutils is vulnerable to resource allocation. The vulnerability is due to improper resource allocation in the TreePointer.tokensFromInput function of the JSON Pointer parser, which allows a remote attacker to exploit the parser and cause excessive resource...

CVE-2026-19807

The ByteCoreStack – MCP Connector for AI Tools plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.2.3 This is due to the wpupdateusermeta MCP tool in executetool gating writes solely with currentusercan'edituser', $uid — a check that WordPress core'...

CVE-2026-19807 ByteCoreStack <= 1.2.3 - Authenticated (Subscriber+) Privilege Escalation via wp_update_user_meta MCP Tool

The ByteCoreStack – MCP Connector for AI Tools plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.2.3 This is due to the wpupdateusermeta MCP tool in executetool gating writes solely with currentusercan'edituser', $uid — a check that WordPress core'...

CVE-2026-19807 ByteCoreStack <= 1.2.3 - Authenticated (Subscriber+) Privilege Escalation via wp_update_user_meta MCP Tool

The ByteCoreStack – MCP Connector for AI Tools plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.2.3 This is due to the wpupdateusermeta MCP tool in executetool gating writes solely with currentusercan'edituser', $uid — a check that WordPress core'...

CVE-2026-92245

The Simply Schedule Appointments plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.6.12.32 via the 'recursive' parameter. This makes it possible for unauthenticated attackers to extract customer PII — including names, email addresses, pho...

EUVD-2026-90464

The Simply Schedule Appointments plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.6.12.32 via the 'recursive' parameter. This makes it possible for unauthenticated attackers to extract customer PII — including names, email addresses, pho...

CLEANSTART-2026-KK56976 Improper encoding of non-finite floating-point values during MapMessage JSON serialization in Apache Log4j API produces output that is not valid JSON

CVE-2026-49844 affects multiple packages. Improper encoding of non-finite floating-point values during MapMessage JSON serialization in Apache Log4j API produces output that is not valid JSON. See references for individual vulnerability details...

CLEANSTART-2026-BR90501 non-blocking (asynchronous) JSON parser in jackson-core does not enforce the maxNumberLength constraint defined in StreamReadConstraints (default: 1000 characters)

Security vulnerability affects the apache-nifi package. The non-blocking asynchronous JSON parser in jackson-core does not enforce the maxNumberLength constraint defined in StreamReadConstraints default: 1000 characters...

PT-2026-105847

Summary When OAuth tokens are saved, MCP Atlassian always writes a plaintext fallback copy under /.mcp-atlassian/oauth-.json. The fallback file is created with the process default umask rather than restrictive permissions. In this environment the file was created as mode 0664, exposing access and...

PT-2026-105158

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15 and 4.0.20 and 4.1.11 and 4.2.6, Atom table exhaustion via management API node field. pUT /api/queues/:vhost/:name and the exchanges and bindings endpoints accepts a node JSON field. The value goes through rabbitnodes:make →...

PT-2026-105797

Impact For views that opt into state snapshots, the snapshot state json embedded in the client page was restored on reconnect as trusted view state with no integrity check. A client could edit the unsigned state json in their page and return it in the reconnect mount frame to inject arbitrary vie...

CentOS Linux 7.9 [CIQ] Security Update: json-c / json-c-devel / json-c-doc (ciqsa-2026_1197)

The CentOS Linux 7.9 host has packages installed that are affected by a vulnerability as referenced in the CIQ ciqsa-20261197 advisory. This advisory aggregates security fixes for the json-c SRPM in CIQ CentOS Bridge 7.9. It addresses 1 CVE: CVE-2020-12762. Tenable has extracted the preceding...

Rocky Linux 10.2 [CIQ] Security Update: iperf3 / iperf3-debuginfo / iperf3-debugsource (crlsa-2026_61680)

The Rocky Linux 10.2 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202661680 advisory. iperf3: iperf3 server accepts unbounded peer-controlled JSON parameters enabling remote denial of service via resource exhaustion CVE-2026-71217 Tenable has...

AlmaLinux 9.2 [TuxCare] Security Update: libfastjson / libfastjson-devel (ALMALINUX9.2:CLSA-2025:1751892313)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1751892313 advisory. - json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbufmemappend...