CVE-2026-61814 — Jawn: Quadratic parsing effort in AsyncParser
Jawn is an open source JSON parser. Prior to 1.7.0, Jawn's AsyncParser can perform quadratic work when a single JSON token is delivered across many small chunks because each abs…
Published: 2026-09-23 · CVSS: 7.5 · CVSS 3.1
Jawn is an open source JSON parser. Prior to 1.7.0, Jawn's AsyncParser can perform quadratic work when a single JSON token is delivered across many small chunks because each absorb call rescans the incomplete token from the start. A remote attacker who controls untrusted JSON input and its chunk sizes can exhaust CPU resources and cause denial of service in applications using AsyncParser. This issue is fixed in version 1.7.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7