CVE-2026-71250

Firefly III is reported vulnerable due to IsValidWebhookUrl.php: the validator explicitly allows any address in 127.0.0.0/8, enabling an authenticated user with webhooks enabled to configure a webhook targeting loopback services on the server. Furthermore, the validator resolves the target once v...

CVE-2026-71250 Firefly III - Webhook URL Validation Explicitly Allows Loopback and Is Bypassable via DNS Rebinding

Firefly III's webhook URL validator IsValidWebhookUrl.php filters most private/reserved IPv4 ranges but contains an explicit early-return that allows any resolved address in 127.0.0.0/8, permitting an authenticated user with webhooks enabled, which is off by default to configure a webhook targeti...

CVE-2026-71250

Firefly III's webhook URL validator IsValidWebhookUrl.php filters most private/reserved IPv4 ranges but contains an explicit early-return that allows any resolved address in 127.0.0.0/8, permitting an authenticated user with webhooks enabled, which is off by default to configure a webhook targeti...

EUVD-2026-53323

Firefly III's webhook URL validator IsValidWebhookUrl.php filters most private/reserved IPv4 ranges but contains an explicit early-return that allows any resolved address in 127.0.0.0/8, permitting an authenticated user with webhooks enabled, which is off by default to configure a webhook targeti...

CVE-2026-71210

Mealie's AsyncSafeTransport SSRF guard mealie/pkgs/safehttp/transport.py resolves a target hostname once, checks the resolved IP against private-range rules, but then issues the actual outbound HTTP request using the original hostname, which the underlying async transport re-resolves independentl...

CVE-2026-71210 mealie - DNS-Rebinding TOCTOU in SSRF Guard Allows Internal Network and Cloud Metadata Access

Mealie's AsyncSafeTransport SSRF guard mealie/pkgs/safehttp/transport.py resolves a target hostname once, checks the resolved IP against private-range rules, but then issues the actual outbound HTTP request using the original hostname, which the underlying async transport re-resolves independentl...

CVE-2026-54020

Open WebUI (self-hosted AI platform) contains a DNS rebinding SSRF vulnerability (CVE-2026-54020) affecting pre-0.11.0 behavior. An attacker who controls authoritative DNS for a submitted hostname could have validation return a public address while the connection later resolves to an internal add...

CVE-2026-54020 Open WebUI: DNS Rebinding SSRF Bypass

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.11.0, Open WebUI resolved a hostname during URL validation and rejected private, loopback, and link-local addresses, but the HTTP clients resolved the hostname again at connection time. An authenticat...

CVE-2026-54020 Open WebUI: DNS Rebinding SSRF Bypass

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.11.0, Open WebUI resolved a hostname during URL validation and rejected private, loopback, and link-local addresses, but the HTTP clients resolved the hostname again at connection time. An authenticat...

CVE-2026-47617

NVIDIA Dynamo for Linux contains a vulnerability in the multimodal media fetcher where an attacker may cause server-side request forgery via DNS rebinding. A successful exploit of this vulnerability might lead to information disclosure...

EUVD-2026-52812

NVIDIA Dynamo for Linux contains a vulnerability in the multimodal media fetcher where an attacker may cause server-side request forgery via DNS rebinding. A successful exploit of this vulnerability might lead to information disclosure...

GHSA-QVV7-CG9C-W4X3 Natural Language Toolkit (NLTK): DNS-rebinding SSRF filter bypass in nltk.pathsec.urlopen (nltk.download / nltk.data.load) defeats ENFORCE mode

Summary nltk.pathsec provides an SSRF filter that NLTK documents as a security control, blocking loopback, private, link-local, and multicast ranges including obfuscated forms and recommending strict ENFORCE mode for security-sensitive environments. The filter is bypassable by DNS rebinding:...

Natural Language Toolkit (NLTK): DNS-rebinding SSRF filter bypass in nltk.pathsec.urlopen (nltk.download / nltk.data.load) defeats ENFORCE mode

Summary nltk.pathsec provides an SSRF filter that NLTK documents as a security control, blocking loopback, private, link-local, and multicast ranges including obfuscated forms and recommending strict ENFORCE mode for security-sensitive environments. The filter is bypassable by DNS rebinding:...

SUSE CVE-2026-34742

The Go MCP SDK used Go's standard encoding/json. Prior to version 1.4.0, the Model Context Protocol MCP Go SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication with StreamableHTTPHandler or...

SUSE CVE-2026-55391

datamodel-code-generator generates Pydantic v2 models, dataclasses, TypedDict, and msgspec.Struct from OpenAPI, JSON Schema, GraphQL, Avro, Protobuf, and raw JSON, YAML, or CSV. Prior to 0.63.0, datamodel-code-generator validates a URL host once in src/datamodelcodegenerator/http.py through...

SUSE CVE-2026-55671

ZITADEL is an open source identity management platform. From 4.0.0-rc.1 through 4.15.1, ZITADEL's HTTP notification channels, OIDC BackChannel Logout, and SAML metadata URL fetches do not consistently validate user-defined URLs against protected denylist handling, allowing server-side requests to...

EUVD-2026-50489

MCP Ruby SDK: Streamable HTTP transport lacks DNS-rebinding Host/Origin protection...

CVE-2026-67346 Swarms 6.8.1 Server-Side Request Forgery via DNS Rebinding Bypass

Swarms through 6.8.1, fixed in commit 8b0fc9e, contains a server-side request forgery vulnerability in the issafeurl function that fails to validate hostnames through DNS resolution, allowing attackers to bypass the blocklist. Attackers can supply user-controlled image or audio URLs that resolve ...

CVE-2026-67346 Swarms 6.8.1 Server-Side Request Forgery via DNS Rebinding Bypass

Swarms through 6.8.1, fixed in commit 8b0fc9e, contains a server-side request forgery vulnerability in the issafeurl function that fails to validate hostnames through DNS resolution, allowing attackers to bypass the blocklist. Attackers can supply user-controlled image or audio URLs that resolve ...

CVE-2026-67346

Swarms 6.8.1 is affected by a server-side request forgery in the _is_safe_url function due to hostname validation via DNS resolution. This allows attackers to supply user-controlled image or audio URLs resolving to private, loopback, or metadata addresses to reach internal services and exfiltrate...