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CVE-2026-121949

🗓️ 05 Nov 2026 17:46:04Reported by MendType 
mend
 mend
🔗 www.mend.io👁 4 Views

Symfony HtmlSanitizer fails to validate srcset and imagesrcset attributes, bypassing host restrictions.

Related
Detection
Refs
Vulners
Node
OR
sensiolabssymfonyRange8.0.0-BETA1–8.1.11
typo3html_sanitizerRange8.0.0-BETA1–8.1.11
typo3html_sanitizerRange6.1.0-BETA1–6.4.50
sensiolabssymfonyRange6.1.0-BETA1–6.4.50
sensiolabssymfonyRange7.0.0-BETA1–7.4.23
typo3html_sanitizerRange7.0.0-BETA1–7.4.23

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09 Nov 2026 08:32Current
5.7Medium risk
Vulners AI Score5.7
CVSS 42.3
CVSS 3.15.4 - 6.1
EPSS0.00239
SSVC
4