Tapestry processes assets `/assets/ctx` using classes chain `StaticFilesFilter -> AssetDispatcher -> ContextResource`, which doesn't filter

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• apache tapestry5.4.0 and later · up to 5.4.4 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (apache). Independent of NVD's CPE analysis and usually ahead of it.

• Apache Apache Tapestry

  • Apache Tapestry 5.4.0 to 5.4.4affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2021-27850Bypass of the fix for CVE-2019-0195
  67This week
• CVE-2019-0195Manipulating classpath asset file URLs, an attacker could guess the path to a known file in the classpath and have it downloaded.
  43Plan
• CVE-2020-17531Deserialization flaw in EOL Tapestry 4.
  42Plan
• CVE-2019-10071The code which checks HMAC in form submissions used String.equals() for comparisons, which results in a timing side channel for the comparis
  42Plan
• CVE-2022-46366Apache Tapestry prior to version 4 (EOL) allows RCE though deserialization of untrusted input
  40Plan
• CVE-2014-1972Apache Tapestry before 5.3.6 relies on client-side object storage without checking whether a client has modified an object, which allows rem
  34Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1const file = path.join(ROOT, req.query.name);2res.sendFile(file);

1const file = path.resolve(ROOT, req.query.name);2if (!file.startsWith(ROOT + path.sep)) {3  return res.sendStatus(400);4}5res.sendFile(file);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.