CVE-2026-35537

LOW

3.7

Description

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Unsafe deserialization in the redis/memcache session handler may lead to arbitrary file write operations by unauthenticated attackers via crafted session data.

CVE Details

CVSS v3.1 Score3.7

SeverityLOW

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published4/3/2026

Last Modified4/3/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-502

References

https://github.com/roundcube/roundcubemail/commit/618c5428edc69fb088e7ac6c89e506dd39df3(cve@mitre.org)

https://github.com/roundcube/roundcubemail/commit/6d586cfa4d8a31f7957f7a445aaedd52592a0e74(cve@mitre.org)

https://github.com/roundcube/roundcubemail/commit/a4ead994d2f0ea92e4a1603196a197e0d5df1620(cve@mitre.org)

https://github.com/roundcube/roundcubemail/releases/tag/1.5.14(cve@mitre.org)

https://github.com/roundcube/roundcubemail/releases/tag/1.6.14(cve@mitre.org)

https://github.com/roundcube/roundcubemail/releases/tag/1.7-rc5(cve@mitre.org)

https://roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14(cve@mitre.org)

IOC Correlations

No correlations recorded

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