CVE-2026-33210
CRITICAL9.1EPSS 0.04%Ruby JSON has a format string injection vulnerability
發布日:2026/3/19修改日:2026/3/25
描述
### Impact A format string injection vulnerability than that lead to denial of service attacks or information disclosure, when the `allow_duplicate_key: false` parsing option is used to parse user supplied documents. This option isn't the default, if you didn't opt-in to use it, you are not impacted. ### Patches Patched in `2.19.2`. ### Workarounds The issue can be avoided by not using the `allow_duplicate_key: false` parsing option.
受影響套件(2)
- Debian/ruby-jsonfrom 0, < 2.19.2+dfsg-1
- RubyGems/json>= 2.18.0, < 2.19.2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
參考連結(5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-33210
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-33210
- PATCHhttps://github.com/ruby/json
- WEBhttps://github.com/ruby/json/security/advisories/GHSA-3m6g-2423-7cp3
- WEBhttps://github.com/rubysec/ruby-advisory-db/blob/master/gems/json/CVE-2026-33210.yml