CVE-2026-48847

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Summary

CVECVE-2026-48847
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-25 20:16:37 UTC
Updated2026-05-26 19:26:42 UTC
DescriptionRoundcube Webmail 1.6.x before 1.6.16, and 1.7.x before 1.7.1 allows pre-authentication arbitrary file deletion via redis/memcache session poisoning bypass.

Risk And Classification

Primary CVSS: v3.1 3.7 LOW from [email protected]

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

EPSS: 0.000680000 probability, percentile 0.210440000 (date 2026-05-31)

Problem Types: CWE-669 | CWE-669 CWE-669 Incorrect Resource Transfer Between Spheres

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary3.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
3.1CNACVSS3.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Roundcube Webmail affected 1.6.0 1.6.16 semver Not specified
CNA Roundcube Webmail affected 1.7.0 1.7.1 semver Not specified

References

ReferenceSourceLinkTags
github.com/roundcube/roundcubemail/commit/703318e6a59515b73b0d8aa2a91e34... [email protected] github.com
github.com/roundcube/roundcubemail/commit/a4eb375b98cc3d055de665c34efc72... [email protected] github.com
github.com/roundcube/roundcubemail/releases/tag/1.7.1 [email protected] github.com
github.com/roundcube/roundcubemail/releases/tag/1.6.16 [email protected] github.com
roundcube.net/news/2026/05/24/security-updates-1.6.16-and-1.7.1 [email protected] roundcube.net
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