Vulnerabilities (CVE)

Total 415474 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2026-96283 2026-09-29 N/A 3.3 LOW
By calling org.freedesktop.Flatpak.SystemHelper.CancelPull on another user's pull, the pull is not actually cancelled but removed from internal tracking, making it impossible for the owning user to stop it. Ongoing pulls cannot be stopped.
CVE-2026-102474 2026-09-29 N/A 4.0 MEDIUM
A flaw was found in dash. The printf builtin reserves four bytes before converting a Unicode \u or \U escape, but the multi-byte token can need five or six bytes. A local user who can supply such an escape to dash printf or echo %b, including through dash -c and a positional argument, can write one or two bytes past that reservation.
CVE-2026-96279 2026-09-29 N/A 6.5 MEDIUM
A malicious OCI registry can hardlink arbitrary host files into the extraction directory when a user installs or updates a Flatpak application from an OCI remote, allowing disclosure of arbitrary host file contents. For system-wide installs running as root, this includes sensitive files such as /etc/shadow.
CVE-2026-93834 2026-09-29 N/A 8.8 HIGH
A use-after-free vulnerability was found in QEMU's 9pfs subsystem. A race condition between the main thread and a worker thread when processing concurrent Tlcreate and Twalk requests allows a malicious guest user to craft a fid path containing stale heap data, bypassing directory traversal restrictions and escaping the shared directory boundary. This can lead to arbitrary host file read/write and code execution (VM escape) as the QEMU process user.
CVE-2026-95520 2026-09-29 N/A 7.1 HIGH
A heap-based buffer overflow flaw was found in rpm. Parsing a symlink entry in an untrusted RPM package whose declared RPMTAG_LONGFILESIZES value is 0xFFFFFFFFFFFFFFFF causes an integer overflow in iterReadArchiveNext() that shrinks a buffer allocation to one byte, after which the payload's independently-controlled cpio filesize field is used to write attacker-controlled data past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.
CVE-2026-97027 2026-09-29 N/A 3.6 LOW
Flatpak passes through arbitrary vendor-extension keys unmodified when exporting an application's Desktop Entry (.desktop) and D-Bus Service (.service) files, instead of validating against an allowlist. A malicious Flatpak app can use this to cause denial of service (e.g. forced application restart loops) or to influence host D-Bus/systemd activation behavior beyond what the sandbox is intended to permit.
CVE-2026-96284 2026-09-29 N/A 2.5 LOW
A malicious user can get read-access to files in the flatpak-system-helper context if a system OCI repository is configured, because the OCI code paths in the system helper follow symlinks when importing OCI images that are under the user's control.
CVE-2026-93647 2026-09-29 N/A 9.3 CRITICAL
An unauthenticated calendar sender can place active markup in a COUNTER message's RFC From address. Selecting the message in Zimbra Classic triggers stored XSS, allowing the attacker to access mailbox data and act as the victim.
CVE-2026-93642 2026-09-29 N/A 9.3 CRITICAL
An unauthenticated sender can forge a share notification that triggers stored XSS when a signed-in Zimbra Modern recipient clicks Accept Share, allowing the attacker to access mailbox data and act as the victim.
CVE-2026-102623 2026-09-29 N/A 6.5 MEDIUM
A flaw was found in KubeVirt. An authenticated user with permission to create Virtual Machine Instances (VMIs) can cause a Denial of Service (DoS) by submitting a virtual machine definition with an empty ephemeral volume. The virt-controller component fails to properly validate the volume configuration, leading to an unhandled exception and application crash during processing. Because the malformed definition persists in the cluster, the controller enters a continuous crash loop, disrupting virtual machine lifecycle operations across the entire environment.
CVE-2026-97025 2026-09-29 N/A 3.2 LOW
Flatpak writes the OCI repository authentication token with world-readable permissions (0644) in the system-helper's cache directory, allowing other local users on a multi-user system to read the token and impersonate the authenticated user against the OCI repository. Only OCI-based sources (e.g. as used by Fedora) are affected; libostree-based sources such as Flathub are not.
CVE-2026-97029 2026-09-29 N/A 5.7 MEDIUM
Flatpak's process ID namespace separation does not prevent a sandboxed app's kill(0, signal) or killpg(0, signal) calls from reaching processes outside the sandbox that share the same process group. A malicious or compromised Flatpak app can use this to cause denial of service by terminating processes outside its sandbox, such as the desktop shell.
CVE-2026-93641 2026-09-29 N/A 9.3 CRITICAL
An unauthenticated sender can forge a share notification that triggers stored XSS when a signed-in Zimbra Classic recipient clicks Accept Share, allowing the attacker to access mailbox data and act as the victim.
CVE-2026-39117 2026-09-29 N/A 9.8 CRITICAL
An issue in AltumCode 66Uptime before v.54.0.0 and 66Uptime ping-servers plugin before v.2.0.0 allows a remote attacker to execute arbitrary code via the index.php
CVE-2026-101267 2026-09-29 N/A N/A
A missing permission check allowed low-privileged users with access to an event but without access to the event's orders to extract some specific information. This information includes the number of attendees and the total revenue.
CVE-2026-79538 2026-09-29 N/A 9.8 CRITICAL
metatool-ai MetaMCP up to and including 2.4.22 is vulnerable to Code Execution in the internal MCP inspector proxy endpoint GET /mcp-proxy/server/stdio (createTransport, STDIO branch, routers/mcp-proxy/server.ts).
CVE-2026-101268 2026-09-29 N/A N/A
If an attacker is able to convince a victim on a specially crafted link, the victim is logged in to the attacker's customer account. If the victim does not notice this, this might lead to their order details being stored into the attacker's account. The attack only works when the event is available on a different domain than the organizer page.
CVE-2026-101269 2026-09-29 N/A N/A
The mechanism binding API-uploaded files to the uploader's authentication method is not working correctly and the same session token is used for all token-based API users. Since API-uploaded files are refered to by randomly generated UUIDs and only exist for a day, there is virtually no risk, but it renders the added protection mechanism useless.
CVE-2026-101270 2026-09-29 N/A N/A
Malicious HTML content could be injected into the help texts of various fields with organizer permissions.
CVE-2026-101271 2026-09-29 N/A N/A
OAuth credentials (access tokens) are valid for the entirety of their lifetime, even if the application (OAuth client) they are bound to is manually disabled.