CVE-2026-3816Public exploitNetwork attack vector

Authenticated service crash via unrestricted ZIP expansion

Published Mar 9, 2026 · Updated Mar 9, 2026

Denial of service in OWASP DefectDojo 2.55.0 through 2.55.4 allows remote authenticated users to crash the service with a ZIP bomb. SonarQube and Microsoft Defender scan importers read every archive member fully into memory without checking uncompressed size or compression ratio. Import Scan permission is required; an archive expanding beyond available memory terminates the application process.

CVSS severity6.5
Medium
EPSS probability0.54%
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 OWASP DefectDojo 2.55.0 through 2.55.4 allows remote authenticated users to crash the service with a ZIP bomb. SonarQube and Microsoft Defender scan importers read every archive member fully into memory without checking uncompressed size or compression ratio. Import Scan permission is required; an archive expanding beyond available memory terminates the application process.

The record

CVE
CVE-2026-3816
Published
Mar 9, 2026
Updated
Mar 9, 2026
Vendor
OWASP ModSecurity
Product
DefectDojo
Classifications
CWE-404, CWE-1284, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=2.55.0
  2. Affected versionversion=2.55.1
  3. Affected versionversion=2.55.2
  4. Affected versionversion=2.55.3
  5. Affected versionversion=2.55.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OWASP ModSecurity · DefectDojoversion=2.55.0; version=2.55.1; version=2.55.2; version=2.55.3; version=2.55.4

Published CVSS scores

2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
4.0VulDBAV:N/AC:L/Au:S/C:N/I:N/A:P
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-404Improper Resource Shutdown or Release
CWE-1284Improper Validation of Specified Quantity in Input
T1499.004Endpoint Denial of Service: Application or System Exploitation

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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