CVE-1999-0926

CRITICAL ⚠ Exploit

Apache allows remote attackers to conduct a denial of service via a large number of MIME headers.

Affects 1 product across 1 vendor.

BCS8.85
CVSS 2.010.0
EPSS8.7%
Percentile95th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity.
◆ SAGE Intelligence — CITED Relevance Research Team

Apache servers are vulnerable to a denial of service attack through the use of a large number of MIME headers, which can exhaust server resources.

BSID: BS-1999-GLOBAL-169951-C • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16 • Confidence: HIGH

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Frequently Asked Questions
What is CVE-1999-0926?
Apache servers are vulnerable to a denial of service attack through the use of a large number of MIME headers, which can exhaust server resources.
What is the CVSS score for CVE-1999-0926?
CVE-1999-0926 has CVSS 10.0 (Critical). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. EPSS: 8.7%.
Is CVE-1999-0926 actively exploited?
Public exploit available for CVE-1999-0926. Exploitation risk elevated.
How do I remediate CVE-1999-0926?
Priority: IMMEDIATE. Advisory: http://archives.neohapsis.com/archives/bugtraq/1998_3/0742.html PSIRT: [email protected]
What systems are affected by CVE-1999-0926?
CVE-1999-0926 affects: Apache.
Vulnerability Details
CVE IDCVE-1999-0926
BSIDBS-1999-GLOBAL-169951-C BreachSpider Global ID
CVSS VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Published1999-09-03
Last Modified2026-06-16
ICS Relevance0%
SourceNVD
Official Description

Apache allows remote attackers to conduct a denial of service via a large number of MIME headers.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

The attack involves sending HTTP requests with an excessive number of MIME headers to the Apache server, leading to resource exhaustion and potential denial of service.

Exploitation Likelihood: HIGH

Affected Products
VendorProductFixed Version
Apache Http Server —
Remediation
View Vendor Advisory →

Remediation Priority: IMMEDIATE

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: July 2026 | Threat Age: 9822 Days
CISA KEVNot in KEV catalog
Public Exploit⚠ Available — Reference
PoC CodeNot confirmed
SAGE Enrichment Record — provenance & audit hash
Model/workspace/models/qwen2.5-coder-32b-instruct-bf16
ConfidenceHIGH
Enriched At2026-05-24
Related CVEs affecting Apache
CVE-1999-0067 10.0 phf CGI program allows remote command execution through shell metacharacters. CVE-1999-1293 10.0 mod_proxy in Apache 1.2.5 and earlier allows remote attackers to cause a deni... CVE-2010-0425 10.0 modules/arch/win32/mod_isapi.c in mod_isapi in the Apache HTTP Server 2.0.37 ... CVE-2003-0789 10.0 mod_cgid in Apache before 2.0.48, when using a threaded MPM, does not properl... CVE-2012-3506 10.0 Unspecified vulnerability in the Apache Open For Business Project (aka OFBiz)...
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