MEDIUMRubyGems →
Ruby json: JSON generator heap buffer overflow when streaming to an IO
Ruby json: JSON generator heap buffer overflow when streaming to an IO
Affected packages
- json— 2.9.0 → 2.19.9
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/ruby/json/security/advisories/GHSA-x2f5-4prf-w687
- https://nvd.nist.gov/vuln/detail/CVE-2026-54696
- https://github.com/ruby/json/commit/996bac686d64e4e3aaeae03b14a7f9ee9695ebdb
- https://github.com/ruby/json
- https://github.com/ruby/json/releases/tag/v2.19.9
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/json/CVE-2026-54696.yml
Structured record: https://osv.dev/vulnerability/GHSA-x2f5-4prf-w687
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