What’s Vulnerable › Vulnerabilities

CVE-2026-107802: SumatraPDF — Windows command-line argument injection in AI selection-translate

• Severity: high (CVSS 7.1 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-08 · updated 2026-10-09
• Weakness: CWE-88

Description

SumatraPDF is a multi-format reader for Windows. In 3.6.1 and earlier, src/SelectionTranslate.cpp embeds selected or pasted translation text in quoted Windows command lines using incomplete quote-only escaping. The affected BuildGrokTranslateCmdLineTemp(), BuildClaudeTranslateCmdLineTemp(), and BuildCodexTranslateCmdLineTemp() functions can allow attacker-controlled text to inject model, working-directory, approval, or sandbox-bypass flags when the corresponding agentic CLI backend is installed and used. No broader impact is claimed beyond the advisory-supported conditions. No fixed version is available as of this review.

Affected products

• sumatrapdfreader sumatrapdf: through 3.6.1

References

• https://github.com/sumatrapdfreader/sumatrapdf/commit/6b88a751ab34a28bafca3bdd635aaa2f4c1e06b6
• https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-xvxg-cwmx-hr7j
• https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-xvxg-cwmx-hr7j

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