CVE catalog
CVE-2026-59990
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
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.61% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | jawn | sid | 0.11.1+really0.6.0-1 | vulnerable |
| Debian | jawn | forky | 0.11.1+really0.6.0-1 | vulnerable |
| Debian | jawn | trixie | 0.11.1+really0.6.0-1 | vulnerable |
| Debian | jawn | bookworm | 0.11.1+really0.6.0-1 | vulnerable |
| Maven | org.typelevel:jawn-parser_2.12 | Not reported | 1.7.0 | fixed |
| Maven | org.typelevel:jawn-parser_2.13 | Not reported | 1.7.0 | fixed |
| Maven | org.typelevel:jawn-parser_3 | Not reported | 1.7.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | jawn | source | sid | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | jawn | source | forky | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | jawn | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | jawn | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Maven | org.typelevel:jawn-parser_2.12 | maven | Not reported | 1.7.0 | Not reported | GHSA-CC4V-RVGP-2PF3 | Not reported |
| Maven | org.typelevel:jawn-parser_2.13 | maven | Not reported | 1.7.0 | Not reported | GHSA-CC4V-RVGP-2PF3 | Not reported |
| Maven | org.typelevel:jawn-parser_3 | maven | Not reported | 1.7.0 | Not reported | GHSA-CC4V-RVGP-2PF3 | Not reported |
Notes
[trixie] jawn: Minor issue [bookworm] jawn: Minor issue; DoS, only used in Debian by sbt-serialization
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libjawn-java]Affected
Source package: [jawn]
Details (2)
0.11.1+really0.6.0-1· all · bookwormAffected
nvd · jawn · debian · bookworm; nvd · jawn · debian · 12
0.11.1+really0.6.0-1· all · bookwormAffected
nvd · jawn · debian · bookworm; nvd · jawn · debian · 12
[Debian 13 (Trixie)]
- [libjawn-java]Affected
Source package: [jawn]
Details (2)
0.11.1+really0.6.0-1· all · trixieAffected
nvd · jawn · debian · 13
0.11.1+really0.6.0-1· all · trixieAffected
nvd · jawn · debian · 13
Observed:
References
- [https://github.com/advisories/GHSA-cc4v-rvgp-2pf3]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-59990]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-59990]
- [https://security-tracker.debian.org/tracker/CVE-2026-59990]
[Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]