CVE-2021-36802Public exploitNetwork attack vector

Application crash via persisted malformed locale

Published Aug 4, 2021 · Updated Sep 17, 2024

Denial of service in Akaunting 2.1.12 and earlier allows remote authenticated users to crash the application via a malformed locale. The settings endpoint accepts and persists an invalid locale without validation, and subsequent page requests encounter an uncaught exception and return HTTP 500. Any authenticated account can trigger the service interruption, which affects the entire web application rather than only the submitting session.

CVSS severity6.5
Medium
EPSS probability0.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Akaunting 2.1.12 and earlier allows remote authenticated users to crash the application via a malformed locale. The settings endpoint accepts and persists an invalid locale without validation, and subsequent page requests encounter an uncaught exception and return HTTP 500. Any authenticated account can trigger the service interruption, which affects the entire web application rather than only the submitting session.

The record

CVE
CVE-2021-36802
Published
Aug 4, 2021
Updated
Sep 17, 2024
Vendor
Akaunting
Product
Akaunting
Classifications
CWE-248, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 4, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.1.12 <=2.1.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Akaunting · Akauntingversion=2.1.12 <=2.1.12

Published CVSS scores

6.5Rapid7, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-248Uncaught Exception
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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