#vulnerability

# Security Advisory: express-xss-sanitizer ## Overview A vulnerability was discovered in express-xss-sanitizer that allowed unbounded recursion depth during sanitization of nested objects. ## Affected Versions - All versions prior to 2.0.1 ## Patched Versions - 2.0.1 and later ## Description The sanitize function in lib/sanitize.js performed recursive sanitization without depth limiting, making it vulnerable to stack overflow attacks via specially crafted deeply nested JSON objects. ## Impact An attacker could cause denial-of-service by sending a request with deeply nested structures, potentially crashing the Node.js process. ## Solution Upgrade to version 2.0.1 or later: ```bash npm install express-xss-sanitizer@latest ```

### Summary A vulnerability in `get-jwks` can lead to cache poisoning in the JWKS key-fetching mechanism. ### Details When the `iss` (issuer) claim is validated only after keys are retrieved from the cache, it is possible for cached keys from an unexpected issuer to be reused, resulting in a bypass of issuer validation. This design flaw enables a potential attack where a malicious actor crafts a pair of JWTs, the first one ensuring that a chosen public key is fetched and stored in the shared JWKS cache, and the second one leveraging that cached key to pass signature validation for a targeted `iss` value. The vulnerability will work only if the `iss` validation is done after the use of `get-jwks` for keys retrieval, which usually is the common case. ### PoC Server code: ```js const express = require('express') const buildJwks = require('get-jwks') const { createVerifier } = require('fast-jwt') const jwks = buildJwks({ providerDiscovery: true }); const keyFetcher = async (jwt) => ...

### Impact A vulnerability has been identified within Rancher Manager where a missing server-side validation on the `.username` field in Rancher can allow users with update permissions on other User resources to cause denial of access for targeted accounts. Specifically: - Username takeover: A user with permission to update another user’s resource can set its `.username` to "admin", preventing both the legitimate admin and the affected user from logging in, as Rancher enforces uniqueness at login time. - Account lockout: A user with update permissions on the admin account can change the admin’s username, effectively blocking administrative access to the Rancher UI. This issue enables a malicious or compromised account with elevated update privileges on User resources to disrupt platform administration and user authentication. **Note:** The users with these permissions to modify accounts and resources are considered as privileged users. For more information, please consult Rancher M...

### Impact A vulnerability has been identified within Rancher Manager whereby the SAML authentication from the Rancher CLI tool is vulnerable to phishing attacks. The custom authentication protocol for SAML-based providers can be abused to steal Rancher’s authentication tokens. Rancher Manager deployments without SAML authentication enabled are not affected by this vulnerability. An attacker can generate a phishing SAML login URL which contains a `publicKey` and `requestId` controlled by the attacker. The attacker can then give the link to another user (eg: admin) and if the victim goes to the link unsuspectingly, they might not notice the bad parameters in the URL. The user will be prompted to login and might believe that its session has ended so they need to re-login. By clicking on the link, they will be logged in and an encrypted token will be created with the attacker's public key. The attacker can then decrypt the victim’s Rancher token, enabling the attack Please consult th...

### Impact A vulnerability has been identified within Rancher Manager whereby `Impersonate-Extra-*` headers are being sent to an external entity, for example `amazonaws.com`, via the `/meta/proxy` Rancher endpoint. These headers may contain identifiable and/or sensitive information e.g. email addresses. If the authentication provider is configured to have email or other sensitive and/or identifiable information as part of the username and principal ID then when a new cloud credential is being created in Rancher Manager this information is sent to an external entity such as `amazonaws.com`, in case of an AWS cloud credentials, in `Impersonate-Extra-Username` and/or `Impersonate-Extra-Principalid` headers. Please note that neither password, password hashes or Rancher’s related authentication tokens are leaked in those requests. The entities to which such information is sent to are limited by the whitelisted domains specified in `nodedrivers.management.cattle.io` objects. For example...

A command injection vulnerability exists in SonarQube GitHub Action prior to v6.0.0 when workflows pass user-controlled input to the args parameter on Windows runners without proper validation. This vulnerability bypasses a previous security fix and allows arbitrary command execution, potentially leading to exposure of sensitive environment variables and compromise of the runner environment. ### Patches The vulnerability has been fixed in version v6.0.0. Users should upgrade to this version or later. ### References - Community Post: https://community.sonarsource.com/t/sonarqube-scanner-github-action-v6/149281 - Fix release: https://github.com/SonarSource/sonarqube-scan-action/releases/tag/v6.0.0

Car makers don’t trust blueprints. They smash prototypes into walls. Again and again. In controlled conditions. Because design specs don’t prove survival. Crash tests do. They separate theory from reality. Cybersecurity is no different. Dashboards overflow with “critical” exposure alerts. Compliance reports tick every box.  But none of that proves what matters most to a CISO: The

Cybersecurity company watchTowr Labs has disclosed that it has "credible evidence" of active exploitation of the recently disclosed security flaw in Fortra GoAnywhere Managed File Transfer (MFT) software as early as September 10, 2025, a whole week before it was publicly disclosed. "This is not 'just' a CVSS 10.0 flaw in a solution long favored by APT groups and ransomware operators – it is a

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An issue was discovered in chinabugotech hutool before 5.8.40 allowing attackers to execute arbitrary expressions that lead to arbitrary method invocation and potentially remote code execution (RCE) via the QLExpressEngine class.