Inefficient Algorithmic Complexity

Overview Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity via the uniqs helper and index-membership checks in src/parser.js when parsing flat selectors e.g. .a.a.a... containing a large number of class or ID tokens. The original implementation uses...

@archon-research/design-system (>=0.1.0-dev25004766367, <=1.0.0-rohit-ds-tokens-and-primitives.1), @archon-research/mcp-connect (>=0.7.0-rohit-magnitude-valuetext.1, <=1.0.0-rohit-ds-tokens-and-primitives.1) +469 more potentially affected by CVE-2026-104844 via postcss-selector-parser (>=7.0.0, <=7.1.5)

postcss-selector-parser NPM version =7.0.0, =0.1.0-dev25004766367, =0.7.0-rohit-magnitude-valuetext.1, =1.0.3, =1.11.1, =1.11.1, =1.11.1, =1.12.0, =1.11.1, =1.11.1, =1.11.1, =1.11.1, =1.11.1, =1.11.1, =1.11.1, =1.13.1, =1.60.1 and more Source cves: CVE-2026-104844 Source advisory:...

Inefficient Algorithmic Complexity

Overview Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity via the uniqs helper and index-membership checks in src/parser.js when parsing flat selectors e.g. .a.a.a... containing a large number of class or ID tokens. The original implementation uses...

CVE-2026-104844

A flaw was found in postcss-selector-parser. A remote attacker could exploit this vulnerability by submitting a specially crafted CSS selector containing numerous class or ID identifiers to an application that parses untrusted input. Due to inefficient processing and repeated scanning during...

CVE-2026-104844

PostCSS Selector Parser is a CSS selector parser that integrates with PostCSS but does not require it. Prior to 7.1.6, src/parser.js splitWord can receive a flat selector as one word token carrying many class or ID indexes because period and hash characters are not tokenizer word delimiters. The...

CVE-2026-104844 PostCSS: Quadratic complexity in flat selector parsing allows CPU exhaustion

PostCSS Selector Parser is a CSS selector parser that integrates with PostCSS but does not require it. Prior to 7.1.6, src/parser.js splitWord can receive a flat selector as one word token carrying many class or ID indexes because period and hash characters are not tokenizer word delimiters. The...

CVE-2026-104844

PostCSS Selector Parser is a CSS selector parser that integrates with PostCSS but does not require it. Prior to 7.1.6, src/parser.js splitWord can receive a flat selector as one word token carrying many class or ID indexes because period and hash characters are not tokenizer word delimiters. The...

CVE-2026-104844 PostCSS: Quadratic complexity in flat selector parsing allows CPU exhaustion

PostCSS Selector Parser is a CSS selector parser that integrates with PostCSS but does not require it. Prior to 7.1.6, src/parser.js splitWord can receive a flat selector as one word token carrying many class or ID indexes because period and hash characters are not tokenizer word delimiters. The...

CVE-2026-104844

The PostCSS Selector Parser (prior to version 7.1.6 ) is vulnerable to a Denial of Service (DoS) attack due to quadratic complexity in flat selector parsing. The root cause lies in src/parser.js, where splitWord() accepts selectors with numerous class or ID indexes because period and hash charact...

CVE-2026-104844 PostCSS: Quadratic complexity in flat selector parsing allows CPU exhaustion

PostCSS Selector Parser is a CSS selector parser that integrates with PostCSS but does not require it. Prior to 7.1.6, src/parser.js splitWord can receive a flat selector as one word token carrying many class or ID indexes because period and hash characters are not tokenizer word delimiters. The...

CVE-2026-104844: Uncontrolled Resource Consumption

PostCSS Selector Parser is a CSS selector parser that integrates with PostCSS but does not require it. Prior to 7.1.6, src/parser.js splitWord can receive a flat selector as one word token carrying many class or ID indexes because period and hash characters are not tokenizer word delimiters. The...

PT-2026-104358

Name of the Vulnerable Software and Affected Versions PostCSS Selector Parser versions prior to 7.1.6 Description In the splitWord function within src/parser.js, the parser fails to treat period and hash characters as tokenizer word delimiters. This allows a flat selector to be processed as a...

Security Bulletin: The Analyst Workflow App for IBM QRadar SIEM contains components with known vulnerabilities

Summary The product includes vulnerable components e.g., framework libraries that could be identified and exploited with automated tools. Analyst Workflow App for IBM QRadar SIEM has addressed the applicable CVEs in an update. Vulnerability Details CVEID:CVE-2026-73646 DESCRIPTION: PostCSS takes ...

Security Bulletin: IBM InfoSphere Optim Archive Viewer is affected by a vulnerability in postcss-selector-parser (CVE-2026-9358)

Summary A Regular Expression Denial of Service ReDoS vulnerability in the postcss-selector-parser library CVE-2026-9358 used by IBM InfoSphere Optim Archive Viewer has been addressed by upgrading the component to version 7.1.4. Vulnerability Details CVEID:CVE-2026-9358 DESCRIPTION: A vulnerabilit...

Security Bulletin: IBM Event Endpoint Management is effected by Multiple Vulnerabilities

Summary IBM Event Endpoint Management is affected by Multiple Vulnerabilities and was addressed in IBM Event Endpoint Management 11.8.2 Vulnerability Details CVEID:CVE-2026-41907 DESCRIPTION: uuid is for the creation of RFC9562 formerly RFC4122 UUIDs. Prior to 14.0.0, v3, v5, and v6 accept extern...

Security Bulletin: IBM Maximo Application Suite - Visual Inspection component uses postcss-selector-parser-7.1.1.tgz which is vulnerable to CVE-2026-9358

Summary IBM Maximo Application Suite - Visual Inspection component uses postcss-selector-parser-7.1.1.tgz which is vulnerable to CVE-2026-9358, This bulletin contains information regarding the vulnerability and its remediation. Vulnerability Details CVEID:CVE-2026-9358 DESCRIPTION: A vulnerabilit...

MAL-2026-10687 Malicious code in selparsecss-selector (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector f4f8e230628f3622bf88bcd590f98f8065a99ea3e71ef1bf3c330439b7671e1f [email protected] is a name-confusion fork of postcss-selector-parser: package.json declares author 'Ai Pyramid' while the LICENSE-MIT, sour...

Malicious code in selparsecss-selector (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector f4f8e230628f3622bf88bcd590f98f8065a99ea3e71ef1bf3c330439b7671e1f [email protected] is a name-confusion fork of postcss-selector-parser: package.json declares author 'Ai Pyramid' while the LICENSE-MIT, sour...

MAL-2026-5737 Malicious code in postcss-minify-selector-parser (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 957f5cbb74f4dd4b4770e8c9cc1a8aac88a4450cb01dbc0fa5242c42e343f54c The package name impersonates the widely-used postcss-selector-parser library which it also declares as a dependency and re-exports verbatim from...

postcss-selector-parser: Postcss: Denial of Service via uncontrolled recursion in AST Serialization

A flaw was found in postcss. A remote attacker could exploit a vulnerability in the toString function of the AST Serialization component by executing a manipulation, leading to uncontrolled recursion. This uncontrolled recursion can result in a Denial of Service DoS condition, making the affected...