CVE-2009-1903: n/a vulnerability

CVE-2009-1903: The PDF XSS protection feature in ModSecurity before 2.5.8 allows remote attackers to cause a denial of ser...

The PDF XSS protection feature in ModSecurity before 2.5.8 allows remote attackers to cause a denial of service (Apache httpd crash) via a request for a PDF file that does not use the GET method.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 05:27 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2009-1903 is an old ModSecurity flaw where its PDF XSS protection could crash Apache httpd when handling certain non-GET requests for PDF files. Business impact is service availability, not data theft, based on the provided sources. Exposure is likely limited to environments running ModSecurity before 2.5.8 with Apache httpd and the PDF XSS protection feature in use on PDF-serving routes. Treat as a targeted availability risk for legacy web infrastructure. Prioritize remediation if old ModSecurity protects public PDF-serving Apache sites; otherwise handle through normal vulnerability hygiene. Mitigation focus: Upgrade ModSecurity to 2.5.8 or later through trusted vendor packages.; Apply relevant Fedora, Gentoo, or distribution security updates where applicable.; Review vendor guidance before changing PDF XSS protection settings..

Prepared: Jun 28, 2026, 10:45 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 3, 2009, 16:33 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
FEDORA-2009-2654CVE reference · vendor-advisory, x_refsource_FEDORA
FEDORA-2009-2686CVE reference · vendor-advisory, x_refsource_FEDORA
modsecurity-pdfxss-dos(49211)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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