Integer Overflow or Wraparound Affecting node package, versions [22.0.0, 22.23.0)[23.0.0, 24.17.0)[25.0.0, 26.3.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published29 Jun 2026
- disclosed26 Jun 2026
- crediterichen
Introduced: 26 Jun 2026
CVE-2026-48933 (opens in a new tab)How to fix?
Upgrade node to version 22.23.0, 24.17.0, 26.3.1 or higher.
Overview
node is a JavaScript runtime built on Chrome's V8 JavaScript engine.
Affected versions of this package are vulnerable to Integer Overflow or Wraparound in the WebCrypto cipher output length calculation in src/crypto/crypto_aes.cc, where data_len + blockSize + tag_len is computed as a signed int before being passed to OpenSSL. An attacker can abort the process and cause a denial of service by passing an input around a multiple of 2 GiB to subtle.encrypt(), which overflows that length computation and crashes the runtime.