Exploit for Expression Language Injection in Mathjs

CVE-2026-40897 Remote Code Execution in Math.js Expression Par...

python: Python: Denial of Service via super-linear regular expression work in csv.Sniffer.sniff()

A flaw was found in the csv.Sniffer.sniff function within Python. An attacker can exploit this by providing specially crafted CSV samples, which can trigger super-linear regular-expression processing during dialect sniffing. This excessive processing consumes significant CPU resources, potentiall...

Zoo Design Studio: Recursive KCL parsing is vulnerable to denial-of-service

Impact Feeding a KCL program that wraps an expression in deep, unnecessary parentheses triggers the parser’s recursive expression - unnecessarilybracketed - expression path. With enough nesting, the call stack grows until it exceeds the process stack limit, causing a stack overflow...

CVE-2026-72844

The Lean 4 kernel does not verify that the structure named in a projection expression matches the type of the value being projected, and environment::addinductive in src/kernel/inductive.cpp did not type check the nested inductive applications that are replaced by auxiliary types, so their...

CVE-2026-77075

n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an expression injection vulnerability in resource-locator field link preview rendering. The editor spliced the field's stored value directly into the node type's URL template without checking for expression syntax. An...

CVE-2026-77081 n8n before 1.123.69 Allowed-Domains Bypass via GraphQL Node

n8n before 1.123.69, 2.x before 2.33.4, and 2.x before 2.34.1 contain an allowed-domains bypass in the GraphQL node. When the node's Authentication parameter is set to expression mode, every authentication-gated credential selector is treated as active; if two credentials of different types are...

EUVD-2026-63269

n8n before 1.123.69, 2.x before 2.33.4, and 2.x before 2.34.1 contain an allowed-domains bypass in the GraphQL node. When the node's Authentication parameter is set to expression mode, every authentication-gated credential selector is treated as active; if two credentials of different types are...

CVE-2026-77081 n8n before 1.123.69 Allowed-Domains Bypass via GraphQL Node

n8n before 1.123.69, 2.x before 2.33.4, and 2.x before 2.34.1 contain an allowed-domains bypass in the GraphQL node. When the node's Authentication parameter is set to expression mode, every authentication-gated credential selector is treated as active; if two credentials of different types are...

CVE-2026-77081 n8n before 1.123.69 Allowed-Domains Bypass via GraphQL Node

n8n before 1.123.69, 2.x before 2.33.4, and 2.x before 2.34.1 contain an allowed-domains bypass in the GraphQL node. When the node's Authentication parameter is set to expression mode, every authentication-gated credential selector is treated as active; if two credentials of different types are...

CVE-2026-77075 n8n before 1.123.69 Expression Injection via Resource Locator

n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an expression injection vulnerability in resource-locator field link preview rendering. The editor spliced the field's stored value directly into the node type's URL template without checking for expression syntax. An...

CVE-2026-77075 n8n before 1.123.69 Expression Injection via Resource Locator

n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an expression injection vulnerability in resource-locator field link preview rendering. The editor spliced the field's stored value directly into the node type's URL template without checking for expression syntax. An...

CVE-2026-77075

n8n's editor splices resource-locator field values into node URL templates without expression-syntax checks, enabling an authenticated user to inject JavaScript evaluated in another user's session. CVSS 8.4 HIGH. Affected: <1.123.69, 2.x <2.33.4, 2.34.x

CVE-2026-77075 n8n before 1.123.69 Expression Injection via Resource Locator

n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an expression injection vulnerability in resource-locator field link preview rendering. The editor spliced the field's stored value directly into the node type's URL template without checking for expression syntax. An...

EUVD-2026-63264

n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an expression injection vulnerability in resource-locator field link preview rendering. The editor spliced the field's stored value directly into the node type's URL template without checking for expression syntax. An...

CVE-2026-77073 n8n before 2.34.1 Cross-Project Credential Access via MCP

n8n versions before 2.34.1 contain a credential validation bypass in the MCP createworkflowfromcode tool when authentication type is set to an expression. Attackers with a valid MCP Bearer API key and knowledge of a target credential ID can persist unauthorized cross-project credential references...

postgresql: PostgreSQL amcheck: Privilege escalation via untrusted search path

An untrusted search path vulnerability in PostgreSQL's amcheck module allows a user with EXECUTE privileges to escalate privileges or execute arbitrary code. By setting a malicious search path before invoking an amcheck function, an attacker can hijack execution to run arbitrary SQL functions wit...

PT-2026-78931

Name of the Vulnerable Software and Affected Versions n8n versions prior to 1.123.69 n8n versions 2.x prior to 2.33.4 n8n versions 2.34.x prior to 2.34.1 Description An expression injection issue exists in the link preview rendering of the resource-locator field. The editor directly splices the...

CVE-2026-72818: Inefficient Regular Expression Complexity

The URLS regular expression in nltk/tokenize/casual.py, compiled into TweetTokenizer.WORDRE and applied by TweetTokenizer.tokenize, contains a naked-domain branch whose domain-label prefix a-z0-9+?:.-a-z0-9+ is unbounded. Input consisting of many alternating label separators can be partitioned in...

PT-2026-79074

Name of the Vulnerable Software and Affected Versions Lean 4 affected versions not specified Description The kernel fails to verify that the structure named in a projection expression matches the type of the value being projected. Additionally, the environment::add inductive function in...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the evaluation of user-supplied SpEL expressions containing the power operator ^ with a BigDecimal or BigInteger operand and a large exponent value. An attacker can cause excessive...