Roundcube Webmail (< 1.6.20, 1.7.x < 1.7.5) - CraftedSignal Threat Feedhttps://feed.craftedsignal.io/products/roundcube-webmail--1.6.20-1.7.x--1.7.5/Trending threats, MITRE ATT&CK coverage, and detection metadata. Fed continuously.Hugoenhello@craftedsignal.iohello@craftedsignal.ioThu, 22 Oct 2026 06:01:03 +0000https://feed.craftedsignal.io/favicon-32x32.pngCraftedSignal Threat Feedhttps://feed.craftedsignal.io/3232https://feed.craftedsignal.io/favicon.svgRoundcube Webmail: Object injection in rcube_session::unserialize (CVE-2026-114724)https://feed.craftedsignal.io/briefs/2026-10-roundcube-object-injection/Thu, 22 Oct 2026 06:01:03 +0000hello@craftedsignal.iohttps://feed.craftedsignal.io/briefs/2026-10-roundcube-object-injection/Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 contains an object injection primitive in rcube_session::unserialize() due to improper handling of session keys prefixed with "!".Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 contains an object injection primitive in the rcube_session::unserialize() function. A session key prefixed with "!" was treated as having no value, resulting in the reconstructed serialized string being emitted with a key but no corresponding value. This desynchronizes the remainder of the input, causing subsequent session data to be interpreted as a serialized value. This provides an object injection primitive for an attacker able to influence stored session data. This has been addressed by upstream by rejecting such keys.

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