High severity7.2NVD Advisory· Published May 25, 2026· Updated May 26, 2026

CVE-2026-48843

Description

Roundcube Webmail 1.6.x between 1.6.14 and 1.6.16,and 1.7.x before 1.7.1 has Insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to SSRF or Information Disclosure, e.g., if stylesheet links point to local network hosts. The issue stems from an insufficient fix for CVE-2026-35540.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Roundcube/Webmailinferred
Range: >=1.6.14,<=1.6.16||<1.7.1
Roundcube/Roundcubemailllm-fuzzy
Range: >=1.6.14, <=1.6.16 || <1.7.1
osv-coords
pkg:rpm/opensuse/roundcubemail&distro=openSUSE%20Tumbleweed
Range: < 1.6.16-2.1

Patches

Vulnerability mechanics

References

github.com/roundcube/roundcubemail/commit/ab96c88bfd888866ec5e02190b19618db283923anvd
github.com/roundcube/roundcubemail/commit/cb3fc9041e91640ba9ba49ee7b2147c176ebf5a1nvd
github.com/roundcube/roundcubemail/releases/tag/1.6.16nvd
github.com/roundcube/roundcubemail/releases/tag/1.7.1nvd
roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1nvd

News mentions

No linked articles in our index yet.

cvss	0.468
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000