CVE catalog
CVE-2026-61814
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 in
- 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
- 0.75% · Oct 25, 2026
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.
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 |
| Suse | jawn | linux enterprise module for package hub 15 sp7 | 0.14.1-150200.3.6.1 | 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-W4CM-GVHJ-CGW6 | Not reported |
| Maven | org.typelevel:jawn-parser_2.13 | maven | Not reported | 1.7.0 | Not reported | GHSA-W4CM-GVHJ-CGW6 | Not reported |
| Maven | org.typelevel:jawn-parser_3 | maven | Not reported | 1.7.0 | Not reported | GHSA-W4CM-GVHJ-CGW6 | Not reported |
| Suse | jawn | rpm | linux enterprise module for package hub 15 sp7 | 0.14.1-150200.3.6.1 | Not reported | SUSE-SU-2026:4407-1 | Not reported |
Notes
[trixie] jawn: Minor issue [bookworm] jawn: Minor issue; needs AsyncParser, which no reverse dependency uses
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://ftp.suse.com/pub/projects/security/csaf/suse-su-2026_4407-1.json]
- [https://github.com/advisories/GHSA-w4cm-gvhj-cgw6]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-61814]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-61814]
- [https://osv.dev/vulnerability/SUSE-SU-2026:4407-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-61814]
[Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]