CVEvulnerability

CVE-2026-54696

3.7 LOW Published 2026-06-30 Modified 2026-10-25 Official page ↗
Status
Deferred
Published
2026-06-30
Last modified
2026-10-25
Assigner
[email protected]
CVSS 3.1 ([email protected])
3.7 LOW — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses
CWE-122, CWE-131, CWE-787

Description

Ruby JSON is a JSON implementation for Ruby. Versions 2.9.0 through 2.19.8 are vulnerable to heap buffer overflow when the JSON generator is provided with an oversized streamed object. When streaming to an IO JSON.dump(obj, io) and JSON::State#generate(obj, io) can write past the internal JSON generator buffer when a streamed object contains an attacker-controlled string near 16 KB. Exploitation would result in a reliable process crash/denial of service. This issue has been fixed in version 2.19.9.

Related

Weakness · CWE (3)

  • CWE-122 Heap-based Buffer Overflow weakness
  • CWE-131 Incorrect Calculation of Buffer Size weakness
  • CWE-787 Out-of-bounds Write weakness

References