CVE-2022-21653

HIGH
Published Jan 5, 20224y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Jan 5, 2022 4y ago
Last Modified Jun 17, 2026 2w ago

Description

Jawn is an open source JSON parser. Extenders of the `org.typelevel.jawn.SimpleFacade` and `org.typelevel.jawn.MutableFacade` who don't override `objectContext()` are vulnerable to a hash collision attack which may result in a denial of service. Most applications do not implement these traits directly, but inherit from a library. `jawn-parser-1.3.1` fixes this issue and users are advised to upgrade. For users unable to upgrade override `objectContext()` to use a collision-safe collection.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-326
CWE-400 Uncontrolled Resource Consumption Resource Mgmt

Affected Products 1

VendorProductVersionRange
typeleveljawn* <1.3.2

References 2

  • github.com https://github.com/typelevel/jawn/pull/390
    ExploitIssue TrackingPatchThird Party Advisory
  • github.com https://github.com/typelevel/jawn/security/advisories/GHSA-vc89-hccf-rq55
    PatchThird Party Advisory

Remediation

  • github.com https://github.com/typelevel/jawn/pull/390
    ExploitIssue TrackingPatchThird Party Advisory
  • github.com https://github.com/typelevel/jawn/security/advisories/GHSA-vc89-hccf-rq55
    PatchThird Party Advisory