CVE-2026-33079 Mistune ReDoS in LINK_TITLE_RE allows denial of service with crafted Markdown titles

In versions 3.0.0a1 through 3.2.0 of Mistune, there is a ReDoS Regular Expression Denial of Service vulnerability in LINKTITLERE that allows an attacker who can supply Markdown for parsing to cause denial of service. The regular expression used for parsing link titles contains overlapping...

CVE-2026-33079

Mistune 3.0.0a1–3.2.0 contains a ReDoS in LINK_TITLE_RE used for parsing link titles, enabling exponential backtracking when processing Markdown strings with repeated ! sequences and no closing quote. The ambiguity arises from overlapping alternatives in the two branches (double-quoted and single...

CVE-2026-33079 Mistune ReDoS in LINK_TITLE_RE allows denial of service with crafted Markdown titles

In versions 3.0.0a1 through 3.2.0 of Mistune, there is a ReDoS Regular Expression Denial of Service vulnerability in LINKTITLERE that allows an attacker who can supply Markdown for parsing to cause denial of service. The regular expression used for parsing link titles contains overlapping...

CVE-2026-33079

In versions 3.0.0a1 through 3.2.0 of Mistune, there is a ReDoS Regular Expression Denial of Service vulnerability in LINKTITLERE that allows an attacker who can supply Markdown for parsing to cause denial of service. The regular expression used for parsing link titles contains overlapping...

Regular Expression Denial of Service (ReDoS)

Overview Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS through the LINKTITLERE regular expression in Markdown parsing. An attacker can cause excessive resource consumption and make the application unresponsive by submitting specially crafted Markdo...

GHSA-8MP2-V27R-99XP Mistune has a ReDoS in LINK_TITLE_RE that allows denial of service via crafted Markdown input

Summary A ReDoS Regular Expression Denial of Service vulnerability in LINKTITLERE allows an attacker who can supply Markdown for parsing to cause denial of service. A crafted 58-byte Markdown document blocks the parser for approximately 6 seconds measured on Apple M2, Python 3.14.3, with...

EUVD-2026-27877

Mistune has a ReDoS in LINKTITLERE that allows denial of service via crafted Markdown input...

Mistune has a ReDoS in LINK_TITLE_RE that allows denial of service via crafted Markdown input

Summary A ReDoS Regular Expression Denial of Service vulnerability in LINKTITLERE allows an attacker who can supply Markdown for parsing to cause denial of service. A crafted 58-byte Markdown document blocks the parser for approximately 6 seconds measured on Apple M2, Python 3.14.3, with...

CVE-2026-40110

Jupyter Server is the backend for Jupyter web applications. In versions 2.17.0 and earlier, the Origin header validation uses Python's re.match to check incoming origins against the alloworiginpat configuration value. Because re.match only anchors at the start of the string and does not require a...

CVE-2026-40110 jupyter-server CORS origin validation bypass via unanchored regex in allow_origin_pat

Jupyter Server is the backend for Jupyter web applications. In versions 2.17.0 and earlier, the Origin header validation uses Python's re.match to check incoming origins against the alloworiginpat configuration value. Because re.match only anchors at the start of the string and does not require a...

Regular Expression without Anchors

Overview Affected versions of this package are vulnerable to Regular Expression without Anchors through the alloworiginpat checks in websocket.py, login.py. An attacker can bypass CORS, WebSocket origin checks, and login redirect validation by supplying an Origin or Referer value that matches the...

EUVD-2026-27510

Jupyter Server has a CORS Origin Validation Bypass via re.match in alloworiginpat from huntr...

Security Bulletin: IBM Maximo Application Suite - Visual Inspection component uses ajv-6.12.6.tgz which is vulnerable to CVE-2025-69873

Summary IBM Maximo Application Suite - Visual Inspection component uses ajv-6.12.6.tgz which is vulnerable to CVE-2025-69873, This bulletin contains information regarding the vulnerability and its remediation. Vulnerability Details CVEID:CVE-2025-69873 DESCRIPTION: ajv Another JSON Schema Validat...

Security Bulletin: There is a vulnerability in prismjs-1.23.0.tgz used by IBM Maximo Manage application in IBM Maximo Application Suite ( CVE-2021-32723)

Summary There is a vulnerability in prismjs-1.23.0.tgz used by IBM Maximo Manage application in IBM Maximo Application Suite. Vulnerability Details CVEID:CVE-2021-32723 DESCRIPTION: Prism is a syntax highlighting library. Some languages before 1.24.0 are vulnerable to Regular Expression Denial of...

Security Bulletin: IBM Edge Data Collector uses picomatch-2.3.1.tgz which is vulnerable to CVE-2026-33671, CVE-2026-33672.

Summary IBM Edge Data Collector uses picomatch-2.3.1.tgz which is vulnerable to CVE-2026-33671, CVE-2026-33672. This bulletin contains information addressing the vulnerability. Vulnerability Details CVEID:CVE-2026-33671 DESCRIPTION: Picomatch is a glob matcher written JavaScript. Versions prior t...

ajv: ReDoS via $data reference

A flaw was found in ajv. When the $data option is enabled, the value of the pattern keyword is passed directly to the JavaScript RegExp constructor without sufficient validation. An attacker able to supply a malicious regular expression pattern can trigger a ReDoS Regular Expression Denial of...

minimatch: minimatch: Denial of Service via specially crafted glob patterns

A flaw was found in minimatch. A remote attacker could exploit this Regular Expression Denial of Service ReDoS vulnerability by providing a specially crafted glob pattern. This pattern, containing numerous consecutive wildcard characters, causes excessive processing and exponential backtracking i...

Security Bulletin: There is a vulnerability in path-to-regexp-0.1.12.tgz used by IBM Maximo Manage application in IBM Maximo Application Suite (CVE-2026-4867)

Summary There is a vulnerability in path-to-regexp-0.1.12.tgz used by IBM Maximo Manage application in IBM Maximo Application Suite. Vulnerability Details CVEID:CVE-2026-4867 DESCRIPTION: Impact: A bad regular expression is generated any time you have three or more parameters within a single...

Security Bulletin: IBM Maximo Application Suite - Monitor Component uses ajv-6.12.6.tgz which is vulnerable to CVE-2025-69873.

Summary IBM Maximo Application Suite - Monitor Component uses ajv-6.12.6.tgz which is vulnerable to CVE-2025-69873. This bulletin contains information addressing the vulnerability. Vulnerability Details CVEID:CVE-2025-69873 DESCRIPTION: ajv Another JSON Schema Validator before 8.18.0 is vulnerabl...

Security Bulletin: IBM Edge Data Collector uses minimatch-3.1.2.tgz which is vulnerable to CVE-2026-26996, CVE-2026-27903, CVE-2026-27904

Summary IBM Edge Data Collector uses minimatch-3.1.2.tgz which is vulnerable to CVE-2026-26996, CVE-2026-27903, CVE-2026-27904. This bulletin contains information addressing the vulnerability. Vulnerability Details CVEID:CVE-2026-26996 DESCRIPTION: minimatch is a minimal matching utility for...