PT-2026-70176

n8n before 1.123.67, 2.31.5, and 2.32.1 contains a credential authorization bypass in the HTTP Request node. An authenticated member with edit access to a shared workflow can reference another user's credential while specifying the credential type via an expression. Because the pre-execution...

CVE-2026-72769: Improperly Controlled Modification of Object Prototype Attributes

n8n before 1.123.67, 2.31.5, and 2.32.1 contains a prototype pollution vulnerability in the VM expression engine. An authenticated user able to create or edit a workflow expression can abuse the engine's array-element access to obtain a reference to a host built-in and pollute its prototype in th...

CVE-2026-18503

Attacker-controlled CSV samples can trigger super-linear regular-expression work during dialect sniffing and consume significant CPU when applications pass unbounded input to csv.Sniffer.sniff...

CVE-2026-18503 Super-linear CPU usage for unbounded input to csv.Sniffer.sniff()

Attacker-controlled CSV samples can trigger super-linear regular-expression work during dialect sniffing and consume significant CPU when applications pass unbounded input to csv.Sniffer.sniff...

Exploit for Expression Language Injection in N8N

CVE-2026-65591 Name of the Vulnerable Software and Affected Ve...

pymdown-extensions: exponential-backtracking ReDoS in caret, tilde, betterem, and magiclink inline processors

SummaryFour inline processors in pymdown-extensions contain regular expressions withexponential backtracking. A single untrusted Markdown line under50 bytes drives markdown.markdown into unbounded CPU on the rendering threadseconds at 45 bytes, growing exponentially with each added character. All...

PYSEC-2026-3654 pymdown-extensions: exponential-backtracking ReDoS in caret, tilde, betterem, and magiclink inline processors

Summary Four inline processors in pymdown-extensions contain regular expressions with exponential backtracking. A single untrusted Markdown line under 50 bytes drives markdown.markdown into unbounded CPU on the rendering thread seconds at 45 bytes, growing exponentially with each added character...

Open WebUI: Any authenticated user can stall a worker via a knowledge-search pattern that backtracks catastrophically

SummaryThe built-in knowledge search tools let a chat participant choose the pattern used to grep knowledge files. Patterns containing regex metacharacters were compiled with Python's backtracking re engine and run against every line of every reachable file, with no time limit anywhere on that...

Security Bulletin:Vulnerability in spring affects IBM Netezza Appliance

Summary The spring package is used by IBM Netezza Appliance. IBM Netezza Appliance has addressed the applicable CVEsCVE-2026-41850, CVE-2026-41851, CVE-2026-41852 Vulnerability Details CVEID:CVE-2026-41850 DESCRIPTION: Applications that evaluate user-supplied Spring Expression Language SpEL...

Security Bulletin:Vulnerability in spring affects IBM Netezza Appliance

Summary The spring package is used by IBM Netezza Appliance. IBM Netezza Appliance has addressed the applicable CVECVE-2026-41848 Vulnerability Details CVEID:CVE-2026-41848 DESCRIPTION: Applications may be vulnerable to a Regular Expression Denial of Service ReDoS attack if an attacker is able to...

CVE-2026-64940

Tegalog -Fumy Otegaru Memo Logger- provided by Nishishi Factory contains a vulnerability due to a permissive regular expression, which may allow an attacker who can access the affected product to log in to the management console. As a result, the attacker may perform any operations available from...

EUVD-2026-55081

Tegalog -Fumy Otegaru Memo Logger- provided by Nishishi Factory contains a vulnerability due to a permissive regular expression, which may allow an attacker who can access the affected product to log in to the management console. As a result, the attacker may perform any operations available from...

CVE-2026-64940: Permissive Regular Expression

Tegalog -Fumy Otegaru Memo Logger- provided by Nishishi Factory contains a vulnerability due to a permissive regular expression, which may allow an attacker who can access the affected product to log in to the management console. As a result, the attacker may perform any operations available from...

PT-2026-69390

Name of the Vulnerable Software and Affected Versions Tegalog -Fumy Otegaru Memo Logger- affected versions not specified Description The software contains a flaw caused by a permissive regular expression. This allows an attacker with access to the product to bypass authentication and log in to th...

CVE-2026-18503: Inefficient CPU Computation

Attacker-controlled CSV samples can trigger super-linear regular-expression work during dialect sniffing and consume significant CPU when applications pass unbounded input to csv.Sniffer.sniff...

PT-2026-76460

Attacker-controlled CSV samples can trigger super-linear regular-expression work during dialect sniffing and consume significant CPU when applications pass unbounded input to csv.Sniffer.sniff...

CVE-2026-19278: Permissive Regular Expression

A flaw was found in StackRox/RHACS Central's Auth Machine-to-Machine M2M token exchange. When an administrator configures M2M role mappings, the system uses unanchored regular expressions for matching claim values. This allows an attacker with a valid OpenID Connect OIDC token, whose claim value ...

CVE-2026-15534

Perl versions through 5.45.1 are vulnerable to out-of-bounds heap reads and writes during regular expression matching. The root cause is a positive overflow of a signed 32-bit count in the regex engine's superlinear cache within S_regmatch . Specifically, when matching a large subject against a p...

CVE-2026-69207

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.34, the built-in CORS middleware, hono/cors, is vulnerable to a regular expression denial of service ReDoS. During a preflight OPTIONS request, the middleware parses the attacker-controlled...

CVE-2026-69207

Hono’s built-in CORS middleware (hono/cors) is vulnerable to a ReDoS in the Access-Control-Request-Headers parsing during preflight requests when allowHeaders is unset/empty. The regex-based parser can backtrack quadratically with long whitespace, potentially causing seconds of CPU usage per pref...