CVE-2026-33210Critical· 9.1▾ MidnightRuby JSON is a JSON implementation for Ruby. From version 2.14.0 to before versions 2.15.2.1, 2.17.1.2, and 2.19.2, a format string injection vulnerability can lead to denial of service attacks or information disclosure, when the allow_d…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 50.1 · likelihood 0.2 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 31.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.8%
0.8% → 1.0%
Ruby JSON is a JSON implementation for Ruby. From version 2.14.0 to before versions 2.15.2.1, 2.17.1.2, and 2.19.2, a format string injection vulnerability can 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 issue has been patched in versions 2.15.2.1, 2.17.1.2, and 2.19.2.
json >= 2.14.0, < 2.15.2.1json >= 2.16.0, < 2.17.1.2json >= 2.18.0, < 2.19.2Upgrade past the affected range:
json 2.19.2Connected by shared product, vendor, weakness, or advisory.
CVE-2020-7712High· 7.2This affects the package json before 10.0.0
CVE-2026-71847LowRuby JSON is a JSON implementation for Ruby
CVE-2026-42246High· 7.4Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby
CVE-2023-45583Medium· 6.2A use of externally-controlled format string vulnerability in Fortinet FortiOS 7.4.0, FortiOS 7.2.0 through 7.2.5, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiOS 6.2 all versions, FortiPAM 1.1.0, FortiPAM 1.0 all versions, F…
CVE-2023-29181High· 8.3A use of externally-controlled format string vulnerability in Fortinet FortiOS 7.2.0 through 7.2.4, FortiOS 7.0.0 through 7.0.11, FortiOS 6.4.0 through 6.4.12, FortiOS 6.2.0 through 6.2.14, FortiOS 6.0.0 through 6.0.16, FortiOS 5.6 all v…
CVE-2023-36640Medium· 6.2A use of externally-controlled format string vulnerability in Fortinet FortiOS 7.4.0, FortiOS 7.2.0 through 7.2.5, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiOS 6.2 all versions, FortiOS 6.0.0 through 6.0.16, FortiPAM 1.1.0…