Advisory severityMedium5.5Red Hat Linux

Medium [CVE-2026-71870] Denial of Service via crafted PDF with large /ToUnicode streams

This medium-severity Red Hat Linux advisory covers CVE-2026-71870.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-71870 Source published Aug 7, 2026Source updated Aug 7, 2026

VulniPulse record published Aug 8, 2026Record updated Aug 11, 2026

CVE-2026-71870

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Summary

Denial of Service via crafted PDF with large /ToUnicode streams. Red Hat rates this moderate (CVSS 5.5).

Weakness: CWE-770.

Affected versions

< 6.15.0

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

6.15.0

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

To reduce exposure, avoid processing untrusted PDF files with applications that use the pypdf library. If processing untrusted content is necessary, deploy affected applications within a sandboxed environment to contain potential resource exhaustion.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Discussion(0)

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