CVE-2026-87011

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.1, the unauthenticated POST /oauth/backchannel-logout handler in backend/openwebui/utils/oauth.py fetched the OIDC discovery document and signing keys before validating a submitted logout...

CVE-2026-87013 Open WebUI: Any authenticated user can start a non-terminating request via a folder parent cycle

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, POST /api/v1/folders/id/update/parent allowed a user to place a folder under itself or one of its descendants, while the folder tree walks used by DELETE /api/v1/folders/id and POST...

CVE-2026-87013

Open WebUI versions 0.10.0 through 0.11.1 contain a denial-of-service vulnerability in the folder tree functionality. The POST /api/v1/folders/{id}/update/parent endpoint allowed an authenticated user to place a folder under itself or one of its descendants, creating a parent cycle . Because the ...

CVE-2026-87011 Open WebUI: Unauthenticated requests can stall the server via uncached OIDC fetches in back-channel logout

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.1, the unauthenticated POST /oauth/backchannel-logout handler in backend/openwebui/utils/oauth.py fetched the OIDC discovery document and signing keys before validating a submitted logout...

CVE-2026-87011 Open WebUI: Unauthenticated requests can stall the server via uncached OIDC fetches in back-channel logout

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.1, the unauthenticated POST /oauth/backchannel-logout handler in backend/openwebui/utils/oauth.py fetched the OIDC discovery document and signing keys before validating a submitted logout...

CVE-2026-87011 Open WebUI: Unauthenticated requests can stall the server via uncached OIDC fetches in back-channel logout

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.0 until 0.11.1, the unauthenticated POST /oauth/backchannel-logout handler in backend/openwebui/utils/oauth.py fetched the OIDC discovery document and signing keys before validating a submitted logout...

CVE-2026-87011

Open WebUI , a self-hosted AI platform, contains a denial-of-service vulnerability in the unauthenticated POST /oauth/backchannel-logout handler (backend/open_webui/utils/oauth.py). From version 0.9.0 through 0.11.1 , the handler fetched the OIDC discovery document and signing keys before validat...

GHSA-7W5X-HRQM-74C2 smol-toml: Denial of Service via malformed TOML documents

Summary parse can be forced into an infinite loop when a value inside an array or inline table is followed by a comment that has no trailing newline i.e. the comment "ends" the document. The library fails to exit an internal loop when attempting to find the end of the structure, resetting its...

smol-toml: Denial of Service via malformed TOML documents

Summary parse can be forced into an infinite loop when a value inside an array or inline table is followed by a comment that has no trailing newline i.e. the comment "ends" the document. The library fails to exit an internal loop when attempting to find the end of the structure, resetting its...

EUVD-2026-71261

smol-toml: Denial of Service via malformed TOML documents...

OPENSUSE-SU-2026:21818-1 Security update for libcupsfilters

This update for libcupsfilters fixes the following issues: - CVE-2026-64611: infinite-loop CPU-exhaustion DoS in cfIEEE1284NormalizeMakeModel on empty MDL field bsc1273145. - CVE-2026-64612: malformed PNG aborts CUPS image filter process bsc1273146...

CVE-2026-6554

A flaw was found in libpcap. The Berkeley Packet Filter BPF interpreter incorrectly handles offsets in 'ja L' instructions, allowing backward jumps without limiting loop iterations. A local attacker could provide a specially crafted filter program, leading to an infinite loop and causing a Denial...

net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame

A flaw was found in the HTTP/2 protocol implementation within the Go standard library golang.org/x/net and net/http/internal/http2. A remote attacker can exploit this vulnerability by sending a specially crafted HTTP/2 SETTINGS frame with the SETTINGSMAXFRAMESIZE parameter set to zero. This...

SUSE CVE-2026-6554

libpcap BPF interpreter treats the offset in the 'ja L' BPF instruction as a signed integer to implement looping via backward jumps, but it does not limit the number of loop iterations. In particular uncommon use cases a crafted filter program can cause the interpreter to loop infinitely...

CVE-2026-88000: Loop with Unreachable Exit Condition

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, DELETE /api/v1/chats/id/messages/messageid used the chat-history deletion helper in backend/openwebui/models/chats.py to follow childrenIds without recording visited message identifiers...

The vulnerability of the netem_enqueue() function in the net/sched/sch_netem.c module of the Linux operating system’s network scheduling subsystem allows a attacker to cause a service failure.

The vulnerability of the netemenqueue function in the net/sched/schnetem.c module of the Linux operating system’s network scheduling subsystem is related to the execution of a loop with an unreachable exit condition an “infinite loop”. Exploiting this vulnerability could allow a remote attacker t...

CVE-2026-88002: Loop with Unreachable Exit Condition

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.5.0 until 0.11.1, the message-chain reconstruction helper in backend/openwebui/utils/misc.py advanced through a chat history by map key but tracked visited entries using each message body's optional id...

The vulnerability of the TreeObject.insert_child() function in the Python library for working with PDF files, PyPDF, allows a hacker to cause a service failure.

The vulnerability of the TreeObject.insertchild function in the Python library for working with PDF files PyPDF is related to the execution of a loop with an unreachable exit condition. Exploiting this vulnerability could allow an attacker to cause a service failure...

The vulnerability of the RoundCube Webmail email client, related to the execution of a loop with an unavailable exit condition, allows a hacker to cause a service failure.

The vulnerability of the RoundCube Webmail email client is related to the execution of a loop with an unreachable exit condition. Exploiting this vulnerability could allow a malicious actor to cause service failures...

The vulnerability of the function batadv_bla_send_claim() in the net/batman-adv/bridge_loop_avoidance.c module, which is part of the network functions of the Linux operating system’s kernel, allows a hacker to trigger a service failure.

The vulnerability of the batadvblasendclaim function in the net/batman-adv/bridgeloopavoidance.c module, which is part of the network functions of the Linux operating system’s kernel, relates to the use of pointers. Exploiting this vulnerability could allow a malicious actor to cause service...