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Ruby JSON: JSON::ResumableParser#partial_value dereferences a freed input buffer and crashes on truncated duplicate-key streams

Ruby JSON: JSON::ResumableParser#partial_value dereferences a freed input buffer and crashes on truncated duplicate-key streams

CVE-2026-71847Published 2 weeks agoUpdated 2 weeks agoSource: OSV

Affected packages

  • json— 2.20.0 → 2.21.2

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

Structured record: https://osv.dev/vulnerability/GHSA-9hj4-r449-hfvc

Recommended response stack

Snyk — Scan your dependencies in CI and fix this vulnerability.→

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Ruby JSON: JSON::ResumableParser#partial_value dereferences a freed input buffer and crashes on truncated duplicate-key streams | HackTribune