Guzzle: Noncanonical cookie domain keeps subdomain scope

Impact SetCookie::matchesDomain gives every subdomain of a cookie Domain that cookie unless it recognizes the Domain as an IP literal or a numeric host, and it decides that from the domain's own text, so two spellings a transport reads as an address keep subdomain scope. On 7.15, hexadecimal and...

GHSA-CJ54-HPCC-GJ6H Thumbor has path traversal via post-validation URL decoding bypass in file_loader

The fileloader performs unquote on the file path AFTER the abspath + startswith security check. An attacker can use percent-encoded path traversal sequences %2e%2e for .. that pass the security check as literal directory names, but are then decoded to actual .. traversal sequences. Affected code...

CVE-2026-53502

Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, fileloader decodes percent-encoded path segments after its root-boundary validation, allowing traversal outside FILELOADERROOTPATH through watermark or frame filter input. This issue is fixed in 7.8.0...

CVE-2026-53502 Thumbor has path traversal via post-validation URL decoding bypass in file_loader

Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, fileloader decodes percent-encoded path segments after its root-boundary validation, allowing traversal outside FILELOADERROOTPATH through watermark or frame filter input. This issue is fixed in 7.8.0...

CVE-2026-54650

openhole exposes localhost to the internet in one command. In 0.1.1 and earlier, openhole-server in internal/server/publicproxy.go forwarded r.URL.Path instead of preserving the original request target with r.URL.EscapedPath, allowing percent encoded dot segments %2e and separators %2f to reach...

CVE-2026-66754

Rouille 0.1.6 through 3.6.2 contains a reachable assertion vulnerability in the Request::removeprefix function that allows remote unauthenticated attackers to crash the server by sending a crafted percent-encoded URL. Attackers can send a request whose decoded path matches a configured prefix whi...

CVE-2026-66754 Rouille 0.1.6 - 3.6.2 Reachable Assertion DoS via remove_prefix percent-encoding

Rouille 0.1.6 through 3.6.2 contains a reachable assertion vulnerability in the Request::removeprefix function that allows remote unauthenticated attackers to crash the server by sending a crafted percent-encoded URL. Attackers can send a request whose decoded path matches a configured prefix whi...

CVE-2026-66754 Rouille 0.1.6 - 3.6.2 Reachable Assertion DoS via remove_prefix percent-encoding

Rouille 0.1.6 through 3.6.2 contains a reachable assertion vulnerability in the Request::removeprefix function that allows remote unauthenticated attackers to crash the server by sending a crafted percent-encoded URL. Attackers can send a request whose decoded path matches a configured prefix whi...

CVE-2026-66754

Rouille 0.1.6–3.6.2 has a reachable assertion DoS in Request::remove_prefix. An unauthenticated attacker can crash the server by sending a crafted percent-encoded URL where the decoded path matches a configured prefix but the raw percent-encoded path does not, causing an assert! failure and resul...

GHSA-P5RM-JG5C-8C77 Microsoft Kiota: Path traversal in generated plugin manifest static_template.file reference (percent-encoding bypass)

Impact Kiota generates AI plugin manifests from an OpenAPI description. When the description contains an x-ai-capabilities response semantics statictemplate or the adaptive-card extension x-ai-adaptive-card, the file reference is written into the generated manifest's...

CVE-2026-48760

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0 until 6.4.41, 7.4.13, and 8.0.13, UrlSanitizer::parse rejected raw BiDi formatting characters but not percent-encoded forms and used an ASCII-only whitespace check, allowing sanitized URLs...

CVE-2026-59221

Open WebUI before 0.10.0 is affected by a path traversal guard bypass in sanitize_proxy_path (backend/open_webui/routers/terminals.py). The function decodes proxy paths only eight times, allowing a nine-times percent-encoded ../ traversal to bypass normalization and be decoded by the upstream ter...

CVE-2026-59221

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 before 0.10.0, sanitizeproxypath in backend/openwebui/routers/terminals.py decoded proxy paths only eight times, allowing a nine-times percent-encoded ../ traversal value to pass normalization checks...

PYSEC-2026-2211

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, HTMLRenderer.safeurl does not block percent-encoded javascript URIs, allowing attacker-supplied Markdown links or images to bypass URL protections and execute script in rendered HTML. This issue is fixed in version...

CVE-2026-14181

CVE-2026-14181 affects @fastify/middie versions 9.1.0 through 9.3.2, where the URL normalization step in the standalone engine fails to sanitize malformed percent‑encoded sequences. Inputs such as incomplete escapes or truncated multibyte sequences cause the underlying decoder to throw synchronou...

EUVD-2026-40947

@fastify/middie versions 9.1.0 through 9.3.2 fail to guard the URL normalization step used by the standalone engine when incoming request paths contain malformed percent-encoded sequences. Inputs such as an incomplete percent escape or a truncated multibyte sequence cause the underlying decoder t...

UBUNTU-CVE-2026-12243

NLTK version 3.9.4 is vulnerable to a path traversal attack due to an incomplete fix for GitHub Issue 3504. The UNSAFENOPROTOCOLRE regex in nltk/data.py checks for literal ../ sequences but fails to account for percent-encoded traversal sequences such as ..%2f. The url2pathname function decodes...

CVE-2026-12243 Path Traversal via Percent-Encoding in nltk.data.find() and nltk.data.load()

NLTK version 3.9.4 is vulnerable to a path traversal attack due to an incomplete fix for GitHub Issue 3504. The UNSAFENOPROTOCOLRE regex in nltk/data.py checks for literal ../ sequences but fails to account for percent-encoded traversal sequences such as ..%2f. The url2pathname function decodes...

CVE-2026-12243

NLTK 3.9.4 is documented to be vulnerable to a path traversal attack due to an incomplete fix (GitHub Issue #3504). The root cause is that the _UNSAFE_NO_PROTOCOL_RE regex in nltk/data.py only checks for literal ../ sequences and does not account for percent-encoded traversal such as ..%2f. Even ...

CVE-2026-48020

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.48, 3.6.19, and 3.7.3, there is a high severity vulnerability in Traefik's StripPrefix middleware that allows an unauthenticated attacker to bypass route-level authentication and authorization. When a public router matches on a...