CVE-2026-35538

low-risk
Published 2026-04-03

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Unsanitized IMAP SEARCH command arguments could lead to IMAP injection or CSRF bypass during mail search.

Do I need to act?

-
0.04% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.1/10 Low
NETWORK / HIGH complexity

Affected Products (1)

Affected Vendors

Roundcube

References (7)

Patch https://github.com/roundcube/roundcubemail/commit/5fe8a69956a9683a4269f3ad2a68e1...
Patch https://github.com/roundcube/roundcubemail/commit/7daf5aa9c190ccc75bb31672d8fee9...
Patch https://github.com/roundcube/roundcubemail/commit/b18a8fa8e81571914c0ff55d4e20ed...
Release Notes https://github.com/roundcube/roundcubemail/releases/tag/1.5.14
Release Notes https://github.com/roundcube/roundcubemail/releases/tag/1.6.14
Release Notes https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5
Vendor Advisory https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14
16
/ 100
low-risk
Severity 11/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal