CVE-2022-3433

MEDIUM

The aeson library is not safe to use to consume untrusted JSON input. A remote user could abuse this flaw to produce a hash collision in the underlying unordered-containers library by sending speci...

Affects 1 product across 1 vendor.

CVSS 3.16.5
EPSS0.8%
Percentile57th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity, low privileges required, no user interaction needed, impact contained to the vulnerable component, no confidentiality impact, no integrity impact, full availability impact.
CWE Weakness Definitions
CWE-326: CWE-326
CWE-328: CWE-328
Related Attack Patterns (CAPEC)
CAPEC-20 Encryption Brute Forcing
via CWE-326
CAPEC-68 Subvert Code-signing Facilities
via CWE-328
CAPEC-461 Web Services API Signature Forgery Leveraging Hash Function Extension Weakness
via CWE-328
CAPEC-112 Brute Force
via CWE-326
CAPEC-192 Protocol Analysis
via CWE-326

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

The aeson library is vulnerable to a hash collision attack when processing untrusted JSON input, leading to a potential denial of service.

BSID: BS-2022-GLOBAL-332045-M • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-2022-3433?
The aeson library is vulnerable to a hash collision attack when processing untrusted JSON input, leading to a potential denial of service.
What is the CVSS score for CVE-2022-3433?
CVE-2022-3433 has CVSS 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. EPSS: 0.8%.
Is CVE-2022-3433 actively exploited?
No confirmed active exploitation of CVE-2022-3433 as of 2026-09-25.
How do I remediate CVE-2022-3433?
Priority: MEDIUM.
What systems are affected by CVE-2022-3433?
CVE-2022-3433 affects Haskell Aeson.
Vulnerability Details
CVE IDCVE-2022-3433
BSIDBS-2022-GLOBAL-332045-M BreachSpider Global ID
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Published2022-10-10
Last Modified2026-06-17
ICS Relevance0%
Weakness (CWE)
SourceNVD
Official Description

The aeson library is not safe to use to consume untrusted JSON input. A remote user could abuse this flaw to produce a hash collision in the underlying unordered-containers library by sending specially crafted JSON data, resulting in a denial of service.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

A remote attacker can exploit this vulnerability by sending specially crafted JSON data that triggers a hash collision in the unordered-containers library, causing the application to consume excessive resources and potentially crash.

Exploitation Likelihood: MEDIUM

Affected Products
VendorProductAffected Versions
Haskell Aeson < 2.0.1.0
Remediation

No official vendor advisory link on record. See the CVE record →

Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 1466 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Model/workspace/models/qwen2.5-coder-32b-instruct-bf16
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hashd23a57b902bc5250adcf25997879e9081639bc2e0d2d469407a053ad374838083527647bddb710e452dea3dbca4b743f835d4aaf13491c918ef090612315fcd5
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