CVE-2026-75003

roundcube: In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, an unclosed url() in a FuncIRI attribute of an SVG image c...

CVE-2026-75003 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-75003, released August 17, 2026. It is not reported as exploited. Patch Radar priority: Urgent.

Urgent
CVSS
9.8
critical
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0040
34th percentile

In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, an unclosed url() in a FuncIRI attribute of an SVG image could evade the remote image blocking, which may lead to information disclosure or privilege escalation.

Where it's fixed

ProductFixed inFixReleased
Linux
roundcube · Debian 12.15 (bookworm) 1.6.5+dfsg-1+deb12u11 DEBIAN-CVE-2026-75003 Aug 17, 2026
roundcube · Debian 13.5 (trixie) 1.6.18+dfsg-0+deb13u1 DEBIAN-CVE-2026-75003 Aug 17, 2026
roundcube · Debian 14 1.6.18+dfsg-1 DEBIAN-CVE-2026-75003 Aug 17, 2026
roundcubemail · opensuse-leap 16.0 1.6.20-bp160.1.1 OPENSUSE-SU-2026:22195-1 Nov 7, 2026

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