Suricata http1: quadratic Content-Disposition processing can lead to denial of service

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata could repeatedly perform expensive parsing of large HTTP `Content-Disposition` headers during HTTP response body processing. Crafted HTTP traffic could cause excessive CPU usage and denial of service. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, use a rule like `alert http1 any any -> any any (sid: 1; http.request_header; content: "Content-Disposition:"; startswith; bsize: > 8192; bypass;)`.

Fireshare has unauthenticated SSRF via missing login_required on webhook test endpoints

Fireshare facilitates self-hosted media and link sharing. Prior to version 1.6.16, two API endpoints that trigger outbound HTTP requests are missing the @login_required decorator. An unauthenticated attacker can call POST /api/test-discord-webhook or POST /api/test-webhook and cause the Fireshare server to issue an arbitrary HTTP POST to any URL the attacker supplies, including internal network addresses and cloud metadata services. No credentials, session cookies, or prior access are required. Version 1.6.16 contains a patch.

Authentication Bypass via SAML Response Manipulation

Under certain conditions a valid SAML IdP response may be used to impersonate another Secret Server user.

Reflected Cross-Site Scripting

An attacker can craft a malicious link that, if used by a legitimate user, may cause the user's browser to run JavaScript supplied by the attacker.

Cryptographic Padding Oracle

An unauthenticated user with access to Secret Server could leverage a padding oracle to decrypt or encrypt data using one of the server's cryptographic keys. The key itself is not exposed.

M2crypto: bleichenbacher timing attacks in the rsa decryption api - incomplete fix for cve-2020-25657

A flaw was found in m2crypto. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data.

Cisco Adaptive Security Virtual Appliance and Secure Firewall Threat Defense Virtual SSL VPN Denial of Service Vulnerability

Update for September 16, 2026: The original 1.0 version of this advisory was specific to the Cisco Adaptive Security Virtual Appliance (ASAv) and Cisco Secure Firewall Threat Defense Virtual (FTDv) models. However, it was later found that this vulnerability affects all Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software platforms. A vulnerability in the VPN and management web servers of the Cisco Secure Firewall ASA Software and Cisco Secure FTD Software platforms could allow an unauthenticated, remote attacker to cause an affected device to run out of system memory or buffer blocks, which in turn could cause SSL VPN connection processing to slow down and eventually cease altogether. This vulnerability is due to a lack of proper memory management for new incoming SSL/TLS connections. An attacker could exploit this vulnerability by sending a large number of new incoming SSL/TLS connections to the targeted device. A successful exploit could allow the attacker to deplete system memory or buffers, resulting in a denial of service (DoS) condition. The memory or buffers could be reclaimed slowly if the attack traffic is stopped, but a manual reload may be required to restore operations quickly.

Xpand IT Write-back Manager v2.3.1 uses weak secret keys to sign JWT tokens. This allows attackers to easily obtain the secret key used to sign JWT tokens via a bruteforce attack.

An arbitrary file upload vulnerability in Xpand IT Write-back Manager v2.3.1 allows attackers to execute arbitrary code via a crafted jsp file.

Xpand IT Write-back manager v2.3.1 uses a hardcoded salt in license class configuration which leads to the generation of a hardcoded and predictable symmetric encryption keys for license generation and validation.

Xpand IT Write-back manager v2.3.1 allows attackers to perform a directory traversal via modification of the siteName parameter.

An issue was discovered in Zammad before 6.3.0. The Zammad Upload Cache uses insecure, partially guessable FormIDs to identify content. An attacker could try to brute force them to upload malicious content to article drafts they have no access to.

Blazy - Less critical - Access bypass - SA-CONTRIB-2026-104

Incorrect Authorization vulnerability in Drupal Blazy allows Forceful Browsing. This issue affects Blazy versions: from 0.0.0 to 3.0.18.

Digital Signage Framework - Moderately critical - Access bypass - SA-CONTRIB-2026-109

Missing Authorization vulnerability in Drupal Digital Signage Framework allows Forceful Browsing. This issue affects Digital Signage Framework versions: from 0.0.0 to 2.6.1.

Keycloak-services: keycloak-services: unauthenticated dos via unbounded locale caching

A flaw was found in the theme localization endpoints of the keycloak-services component, which is the core service responsible for authentication flows and theme management in Keycloak. The issue occurs because the system accepts arbitrary locale tags from unauthenticated requests and stores them in a permanent in-memory cache without limits. An attacker can exploit this by sending a large number of unique locale tags, eventually causing the server to run out of memory and crash.

Keycloak-services: keycloak-services: saml redirect deflate helpers leak native zlib state

A flaw was found in the SAML Redirect Binding implementation of Keycloak, an open-source identity and access management solution. The issue occurs because the custom DEFLATE compression and decompression helpers fail to release native zlib memory after use. An unauthenticated attacker can exploit this by sending repeated malformed SAML requests, leading to native memory exhaustion and a denial of service.

multiparty vulnerable to Denial of Service via unbounded part-header accumulation

multiparty is a Node.js library for parsing multipart/form-data request bodies. In versions from 2.1.0 up to but not including 4.3.1, the parser does not bound the amount of memory used while accumulating the headers of a single multipart part. An unauthenticated attacker can send a single request whose part carries a very large volume of header bytes, forcing the parser to buffer all of them and exhausting the process memory, which crashes the server. This is a denial of service with no confidentiality or integrity impact. The issue is fixed in multiparty 4.3.1, which caps the size of the accumulated part headers. Users should upgrade to multiparty 4.3.1 or later.

IBM App Connect Enterprise is vulnerable to privilege escalation and Denial of Service

IBM App Connect Enterprise 13.0.1.0 through 13.0.8.1, and 12.0.1.0 through 12.0.12.27 could allow a remote authenticated attacker to bypass security restrictions due to incorrect authorization.

PCRE2: PCRE2: Out-of-bounds read via invalid UTF data during JIT fallback

PCRE2 before 10.48 has a pcre2_match out-of-bounds read after a JIT fallback when an attacker can provide invalid UTF data.

Skype for Business Spoofing Vulnerability

Improper verification of cryptographic signature in Skype for Business allows an unauthorized attacker to perform spoofing over an adjacent network.