| Name | CVE-2026-59990 |
| Description | Jawn is an open source JSON parser. Prior to 1.7.0, Jawn parse methods accept arbitrarily deep JSON array and object nesting without a depth limit, allowing a remote attacker who can submit untrusted JSON to grow parser contexts until the JVM heap is exhausted. The resulting java.lang.OutOfMemoryError is a fatal Scala error that is not ordinarily handled by scala.util.Try or cats.effect.IO, causing denial of service. This issue is fixed in version 1.7.0. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| jawn (PTS) | forky, sid, bookworm, trixie | 0.11.1+really0.6.0-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| jawn | source | (unstable) | (unfixed) |
[trixie] - jawn <no-dsa> (Minor issue)
[bookworm] - jawn <postponed> (Minor issue; DoS, only used in Debian by sbt-serialization)
https://github.com/typelevel/jawn/security/advisories/GHSA-cc4v-rvgp-2pf3
Fixed by: https://github.com/typelevel/jawn/commit/191cb3a44e77f1afab439ee636bf66bdf3c54a04 (v1.7.0)
Fixed by: https://github.com/typelevel/jawn/commit/6219666641f9408498f85868f835e17bd8a72fed (v1.7.0)
Fxied by: https://github.com/typelevel/jawn/commit/93ac93e9c992c11b4c03d5455d8551f9fb24da1b (v1.7.0)
Fixed by: https://github.com/typelevel/jawn/commit/f6ace7e0db715de1a8c4618bed9378333a5c2214 (v1.7.0)