CVE-2026-33020

libsixel: Integer Overflow in write_png_to_file() leads to Heap-based Buffer Overflow

libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. Versions 1.8.7 and prior contain an integer overflow which leads to a heap buffer overflow via sixel_frame_convert_to_rgb888() in frame.c, where allocation size and pointer offset computations for palettised images (PAL1, PAL2, PAL4) are performed using int arithmetic before casting to size_t. For images whose pixel count exceeds INT_MAX / 4, the overflow produces an undersized heap allocation for the conversion buffer and a negative pointer offset for the normalization sub-buffer, after which sixel_helper_normalize_pixelformat() writes the full image data starting from the invalid pointer, causing massive heap corruption confirmed by ASAN. An attacker providing a specially crafted large palettised PNG can corrupt the heap of the victim process, resulting in a reliable crash and potential arbitrary code execution. This issue has been fixed in version 1.8.7-r1.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Saitoha

Products

Libsixel

CVE-2026-33023

libsixel: Use-after-free in load_with_gdkpixbuf()

libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. In versions 1.8.7 and prior, when built with the --with-gdk-pixbuf2 option, a use-after-free vulnerability exists in load_with_gdkpixbuf() in loader.c. The cleanup path manually frees the sixel_frame_t object and its internal buffers without consulting the reference count, even though the object was created via the refcounted constructor sixel_frame_new() and exposed to the public callback. A callback that calls sixel_frame_ref(frame) to retain a logically valid reference will hold a dangling pointer after sixel_helper_load_image_file() returns, and any subsequent access to the frame or its fields triggers a use-after-free confirmed by AddressSanitizer. The root cause is a consistency failure between two cleanup strategies in the same codebase: sixel_frame_unref() is used in load_with_builtin() but raw free() is used in load_with_gdkpixbuf(). An attacker supplying a crafted image to any application built against libsixel with gdk-pixbuf2 support can trigger this reliably, potentially leading to information disclosure, memory corruption, or code execution. This issue has been fixed in version 1.8.7-r1.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Saitoha

Products

Libsixel

CVE-2026-22733

Authentication Bypass under Actuator CloudFoundry endpoints

Spring Boot applications with Actuator can be vulnerable to an "Authentication Bypass" vulnerability when an application endpoint that requires authentication is declared under the path used by the CloudFoundry Actuator endpoints. This issue affects Spring Security: from 4.0.0 through 4.0.3, from 3.5.0 through 3.5.11, from 3.4.0 through 3.4.14, from 3.3.0 through 3.3.17, from 2.7.0 through 2.7.31.

CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed

Vendors

Spring Vmware

Products

Spring Security Spring Boot

CVE-2026-33021

libsixel: Use-after-free in sixel_encoder_encode_bytes()

libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. Versions 1.8.7 and prior contain a use-after-free vulnerability in sixel_encoder_encode_bytes() because sixel_frame_init() stores the caller-owned pixel buffer pointer directly in frame->pixels without making a defensive copy. When a resize operation is triggered, sixel_frame_convert_to_rgb888() unconditionally frees this caller-owned buffer and replaces it with a new internal allocation, leaving the caller with a dangling pointer. Any subsequent access to the original buffer by the caller constitutes a use-after-free, confirmed by AddressSanitizer. An attacker who controls incoming frames can trigger this bug repeatedly and predictably, resulting in a reliable crash with potential for code execution. This issue has been fixed in version 1.8.7-r1.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Saitoha

Products

Libsixel

CVE-2026-22735

Server Sent Event stream corruption

Spring MVC and WebFlux applications are vulnerable to stream corruption when using Server-Sent Events (SSE). This issue affects Spring Foundation: from 7.0.0 through 7.0.5, from 6.2.0 through 6.2.16, from 6.1.0 through 6.1.25, from 5.3.0 through 5.3.46.

CVSS 3.1 · 2.6 Low EPSS < 1% KEV · Not listed

Vendors

Spring Vmware

Products

Spring Foundation Spring Framework

CVE-2026-22737

Spring Framework Improper Path Limitation with Script View Templates

Use of Java scripting engine enabled (e.g. JRuby, Jython) template views in Spring MVC and Spring WebFlux applications can result in disclosure of content from files outside the configured locations for script template views. This issue affects Spring Framework: from 7.0.0 through 7.0.5, from 6.2.0 through 6.2.16, from 6.1.0 through 6.1.25, from 5.3.0 through 5.3.46.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed

Vendors

Spring Vmware

Products

Spring Framework Spring Framework

CVE-2026-33146

Docmost's Public Share Search Exposes Metadata of Restricted Children

Docmost is open-source collaborative wiki and documentation software. An authorization bypass vulnerability in versions 0.70.0 through 0.70.2 exposes restricted child page titles and text snippets through the public search endpoint (`POST /api/search/share-search`) for publicly shared content. This flaw allows unauthenticated users to enumerate and retrieve content that should remain hidden from public share viewers, leading to a confidentiality breach. Version 0.70.3 contains a patch.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Docmost

Products

Docmost

CVE-2026-6066

Unencrypted Client‑Server Communication in ConnectWise Automate™ Solution Center

ConnectWise has released a security update for ConnectWise Automate™ that addresses a behavior in the ConnectWise Automate Solution Center where certain client-to-server communications could occur without transport-layer encryption. This could allow network‑based interception of Solution Center traffic in Automate deployments. The issue has been resolved in Automate 2026.4 by enforcing secure communication for affected Solution Center connections.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Connectwise

Products

Automate

CVE-2026-33193

Docmost vulnerable to stored XSS via MIME type spoofing

Docmost is open-source collaborative wiki and documentation software. Versions prior to 0.70.0 are vulnerable to a stored cross-site scripting (XSS) attack due to improper handling of MIME type spoofing (GHSL-2026-052). An attacker could exploit this flaw to inject malicious scripts, potentially compromising the security of users and data. Version 0.70.0 contains a patch.

CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed

Vendors

Docmost

Products

Docmost

CVE-2025-14362

GoAnywhere MFT SFTP Service Login Vulnerable to Brute Force Attack Under Certain Circumstances

The login limit is not enforced on the SFTP service of Fortra's GoAnywhere MFT prior to 7.10.0 if the Web User attempting to be logged in to is configured to log in with an SSH Key, making the SSH key vulnerable to being guessed via Brute Force.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Fortra

Products

Goanywhere Managed File Transfer Goanywhere Mft

CVE-2026-5756

Unauthenticated Configuration File Modification Vulnerability in DRC Central Office Services (COS)

Unauthenticated Configuration File Modification Vulnerability in DRC Central Office Services (COS) allows an attacker to modify the server's configuration file, potentially leading to mass data exfiltration, malicious traffic interception, or disruption of testing services.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Data Recognition Corporation

Products

Central Office Services - Content Hosting Component

CVE-2026-34454

OAuth2 Proxy: Session cookie not cleared when rendering sign-in page

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. A regression introduced in 7.11.0 prevents OAuth2 Proxy from clearing the session cookie when rendering the sign-in page. In deployments that rely on the sign-in page as part of their logout flow, a user may be shown the sign-in page while the existing session cookie remains valid, meaning the browser session is not actually logged out. On shared workstations or devices, a subsequent user could continue to use the previous user's authenticated session. Deployments that use a dedicated logout/sign-out endpoint to terminate sessions are not affected. This issue is fixed in 7.15.2

CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed

Vendors

Oauth2 Proxy Project

Products

Oauth2 Proxy

CVE-2026-34457

OAuth2 Proxy: Health Check User-Agent Matching Bypasses Authentication in auth_request Mode

OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. Versions prior to 7.15.2 contain a configuration-dependent authentication bypass in deployments where OAuth2 Proxy is used with an auth_request-style integration (such as nginx auth_request) and either --ping-user-agent is set or --gcp-healthchecks is enabled. In affected configurations, OAuth2 Proxy treats any request with the configured health check User-Agent value as a successful health check regardless of the requested path, allowing an unauthenticated remote attacker to bypass authentication and access protected upstream resources. Deployments that do not use auth_request-style subrequests or that do not enable --ping-user-agent/--gcp-healthchecks are not affected. This issue is fixed in 7.15.2.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed

Vendors

Oauth2 Proxy Project

Products

Oauth2 Proxy

CVE-2025-53242

WordPress Seil Theme <= 1.7.1 - Deserialization of untrusted data Vulnerability

Deserialization of Untrusted Data vulnerability in VictorThemes Seil seil allows Object Injection.This issue affects Seil: from n/a through <= 1.7.1.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed

Vendors

Wordpress

Products

Wordpress

CVE-2025-1241

Encryption vulnerable to brute-force decryption in GoAnywhere MFT

Encrypted values in Fortra's GoAnywhere MFT prior to version 7.10.0 and GoAnywhere Agents prior to version 2.2.0 utilize a static IV which allows admin users to brute-force decryption of data.

CVSS 3.1 · 5.8 Medium EPSS < 1% KEV · Not listed

Vendors

Apple Fortra Linux and 1 more

Products

Macos Goanywhere Agents Goanywhere Managed File Transfer and 3 more

CVE-2026-25058

Vexa's unauthenticated internal transcript endpoint exposed by default

Vexa is an open-source, self-hostable meeting bot API and meeting transcription API. Prior to 0.10.0-260419-1910, the Vexa transcription-collector service exposes an internal endpoint `GET /internal/transcripts/{meeting_id}` that returns transcript data for any meeting without any authentication or authorization checks. An unauthenticated attacker can enumerate all meeting IDs, access any user's meeting transcripts without credentials, and steal confidential business conversations, passwords, and/or PII. Version 0.10.0-260419-1910 patches the issue.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Vexa Vexa-ai

Products

Vexa Vexa

CVE-2026-25883

Vexa Webhook Feature has a SSRF Vulnerability

Vexa is an open-source, self-hostable meeting bot API and meeting transcription API. Prior to 0.10.0-260419-1910, the Vexa webhook feature allows authenticated users to configure an arbitrary URL that receives HTTP POST requests when meetings complete. The application performs no validation on the webhook URL, enabling Server-Side Request Forgery (SSRF). An authenticated attacker can set their webhook URL to target internal services (Redis, databases, admin panels), cloud metadata endpoints (AWS/GCP credential theft), and/or localhost services. Version 0.10.0-260419-1910 patches the issue.

CVSS 3.1 · 5.8 Medium EPSS < 1% KEV · Not listed

Vendors

Vexa Vexa-ai

Products

Vexa Vexa

CVE-2026-35032

Jellyfin: Potential SSRF + Arbitrary file read via LiveTV M3U tuner

Jellyfin is an open source self hosted media server. Versions prior to 10.11.7 contain a vulnerability chain in the LiveTV M3U tuner endpoint (POST /LiveTv/TunerHosts), where the tuner URL is not validated, allowing local file read via non-HTTP paths and Server-Side Request Forgery (SSRF) via HTTP URLs. This is exploitable by any authenticated user because the EnableLiveTvManagement permission defaults to true for all new users. An attacker can chain these vulnerabilities by adding an M3U tuner pointing to an attacker-controlled server, serving a crafted M3U with a channel pointing to the Jellyfin database, exfiltrating the database to extract admin session tokens, and escalating to admin privileges. This issue has been fixed in version 10.11.7. If users are unable to upgrade immediately, they can disable Live TV Management privileges for all users.

CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed

Vendors

Jellyfin

Products

Jellyfin

CVE-2026-35033

Jellyfin: Potential SSRF + Arbitrary file read via stream argument injection

Jellyfin is an open source self hosted media server. Versions prior to 10.11.7 contain an unauthenticated arbitrary file read vulnerability via ffmpeg argument injection through the StreamOptions query parameter parsing mechanism. The ParseStreamOptions method in StreamingHelpers.cs adds any lowercase query parameter to a dictionary without validation, bypassing the RegularExpression attribute on the level controller parameter, and the unsanitized value is concatenated directly into the ffmpeg command line. By injecting a drawtext filter with a textfile argument, an attacker can read arbitrary server files such as /etc/shadow and exfiltrate their contents as text rendered in the video stream response. The vulnerable /Videos/{itemId}/stream endpoint has no Authorize attribute, making this exploitable without authentication, though item GUIDs are pseudorandom and require an authenticated user to obtain. This issue has been fixed in version 10.11.7.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed

Vendors

Jellyfin

Products

Jellyfin

CVE-2026-0971

GoAnywhere MFT SAML Sessions do not redirect to logout URL on session timeout

An improper session timeout issue in Fortra's GoAnywhere MFT prior to version 7.10.0 results in SAML configured Web Users being redirected to the regular login page instead of the SAML login page.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Fortra

Products

Goanywhere Managed File Transfer Goanywhere Mft