CVE-2026-90982 @fastify/static vulnerable to route guard bypass via path case-folding

@fastify/static is a Fastify plugin that serves static files from a configured root directory. In versions before 10.1.4, on a case-insensitive filesystem such as Windows or the default macOS volume, a route guard or allowedPath restriction can be bypassed by altering the letter case of a path...

CVE-2026-90982

CVE-2026-90982 affects the @fastify/static plugin (versions before 10.1.4 ). On case-insensitive filesystems such as Windows or the default macOS volume, a mismatch between the case-sensitive route matcher and the case-insensitive filesystem allows an unauthenticated attacker to bypass route guar...

CVE-2026-90982 @fastify/static vulnerable to route guard bypass via path case-folding

@fastify/static is a Fastify plugin that serves static files from a configured root directory. In versions before 10.1.4, on a case-insensitive filesystem such as Windows or the default macOS volume, a route guard or allowedPath restriction can be bypassed by altering the letter case of a path...

CVE-2026-90982 @fastify/static vulnerable to route guard bypass via path case-folding

@fastify/static is a Fastify plugin that serves static files from a configured root directory. In versions before 10.1.4, on a case-insensitive filesystem such as Windows or the default macOS volume, a route guard or allowedPath restriction can be bypassed by altering the letter case of a path...

DEBIAN-CVE-2026-86472

fast-uri is a dependency-free RFC 3986 URI parser for Node.js, used by Fastify and ajv. In versions before 2.4.7, from 3.0.0 through 3.1.7, and from 4.0.0 through 4.1.4, fast-uri folds the host to lowercase before it percent-decodes the host, so a percent-encoded uppercase octet such as %41 decod...

CVE-2026-86472

fast-uri is a dependency-free RFC 3986 URI parser for Node.js used by Fastify and ajv . In versions before 2.4.7, 3.0.0–3.1.7, and 4.0.0–4.1.4, the library folds the host to lowercase before percent-decoding, so a percent-encoded uppercase octet (e.g. %41 → A) is never folded. For scheme-relative...

CVE-2026-54567 Flask-Reuploaded: Extension-denylist bypass via case-folding asymmetry in name-override path (incomplete-fix variant of CVE-2026-27641)

Flask-Reuploaded provides file uploads for Flask. From 1.5.0 until 1.6.0, UploadSet.savestorage, name=... in src/flaskuploads/flaskuploads.py applies lowercaseext to the default upload path but uses the case-preserving extension helper for a caller-supplied name before extensionallowed evaluates ...

CVE-2026-54567

Flask-Reuploaded versions from 1.5.0 to before 1.6.0 are affected by a case-folding asymmetry in the name-override path of UploadSet.save(). When a caller supplies a name override, the extension re-validation uses the case-preserving extension() helper instead of the case-normalizing lowercase_ex...

CVE-2026-54567 Flask-Reuploaded: Extension-denylist bypass via case-folding asymmetry in name-override path (incomplete-fix variant of CVE-2026-27641)

Flask-Reuploaded provides file uploads for Flask. From 1.5.0 until 1.6.0, UploadSet.savestorage, name=... in src/flaskuploads/flaskuploads.py applies lowercaseext to the default upload path but uses the case-preserving extension helper for a caller-supplied name before extensionallowed evaluates ...

CVE-2026-54567 Flask-Reuploaded: Extension-denylist bypass via case-folding asymmetry in name-override path (incomplete-fix variant of CVE-2026-27641)

Flask-Reuploaded provides file uploads for Flask. From 1.5.0 until 1.6.0, UploadSet.savestorage, name=... in src/flaskuploads/flaskuploads.py applies lowercaseext to the default upload path but uses the case-preserving extension helper for a caller-supplied name before extensionallowed evaluates ...

CVE-2026-82736 Ash.Type.CiString validates length and match constraints before case folding, allowing constraint bypass

Incorrect Behavior Order: Validate Before Canonicalize vulnerability in ash-project ash lets an attacker store a case-insensitive string value that violates its length or match constraints. Ash.Type.CiString.applyconstraints/2 lib/ash/type/cistring.ex validated the maxlength, minlength, and match...

CVE-2026-82736

ash-project ash (Elixir web framework) contains an Incorrect Behavior Order: Validate Before Canonicalize vulnerability in Ash.Type.CiString.apply_constraints/2 (lib/ash/type/ci_string.ex). The max_length , min_length , and match constraints were validated against the value as submitted , while t...

CVE-2026-82736 Ash.Type.CiString validates length and match constraints before case folding, allowing constraint bypass

Incorrect Behavior Order: Validate Before Canonicalize vulnerability in ash-project ash lets an attacker store a case-insensitive string value that violates its length or match constraints. Ash.Type.CiString.applyconstraints/2 lib/ash/type/cistring.ex validated the maxlength, minlength, and match...

EEF-CVE-2026-82736 Ash.Type.CiString validates length and match constraints before case folding, allowing constraint bypass

Summary Incorrect Behavior Order: Validate Before Canonicalize vulnerability in ash-project ash lets an attacker store a case-insensitive string value that violates its length or match constraints. Ash.Type.CiString.applyconstraints/2 lib/ash/type/cistring.ex validated the maxlength, minlength, a...

EUVD-2026-68963

Incorrect Behavior Order: Validate Before Canonicalize vulnerability in ash-project ash lets an attacker store a case-insensitive string value that violates its length or match constraints. Ash.Type.CiString.applyconstraints/2 lib/ash/type/cistring.ex validated the maxlength, minlength, and match...

CVE-2026-82736 Ash.Type.CiString validates length and match constraints before case folding, allowing constraint bypass

Incorrect Behavior Order: Validate Before Canonicalize vulnerability in ash-project ash lets an attacker store a case-insensitive string value that violates its length or match constraints. Ash.Type.CiString.applyconstraints/2 lib/ash/type/cistring.ex validated the maxlength, minlength, and match...

PT-2026-84085

Incorrect Behavior Order: Validate Before Canonicalize vulnerability in ash-project ash lets an attacker store a case-insensitive string value that violates its length or match constraints. Ash.Type.CiString.apply constraints/2 lib/ash/type/ci string.ex validated the max length, min length, and...

curl: TLS session cache case-folds CA paths and bypasses the active trust profile

curl 8.21.0 case-folds the entire TLS session-cache peer key, so two distinct CA files whose Unix paths differ only by case can share a TLS session ticket. At lib/vtls/vtlsscache.c:723, curlstrequal compares keys that include case-sensitive CA, CRL, and issuer paths, even though...

PSF-2026-37

The "stringprep" module didn't process characters from RFC 3454 tables B.2 or B.3 correctly: the latest Unicode codepoint attributes were used instead of the specified Unicode 3.2.0. This behavior would cause mismatches when processing domain names using IDNA 2003 the "idna" codec and the intable...

PT-2026-77031

Name of the Vulnerable Software and Affected Versions Python affected versions not specified Description The stringprep module incorrectly processes characters from RFC 3454 tables B.2 or B.3 by using the latest Unicode codepoint attributes instead of the required Unicode 3.2.0. This leads to...