Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-75007

CVE-2026-75007HIGH

Roundcube Webmail — In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the LDAP search filter was subject to injection via unescaped %u/%fu/%d substi…

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   L   N  U  H  H  H    8.8   .0050   40.7     —

AFFECTED
  Product  Versions  Fixed
  Webmail  1.6.0 –   —

TIMELINE
  Aug 17  Reserved by mitre
  Aug 17  Published (CNA: mitre)
  Sep 8   RESCORED — CVE-2026-75007 (Roundcube Webmail). CVSS 5.4 → 8.8 (NVD).

CWE-77 · CNA: mitre · CVSS v3.1 · 5 references · NVD status: Analyzed

Description

In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the LDAP search filter was subject to injection via unescaped %u/%fu/%d substitution, which may lead to information disclosure or privilege escalation.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 17, 2026	Reserved	Reserved by mitre
August 17, 2026	Published	Published (CNA: mitre)
September 8, 2026	RESCORED	RESCORED — CVE-2026-75007 (Roundcube Webmail). CVSS 5.4 → 8.8 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Roundcube	Webmail	—	1.6.0	—

Weaknesses

CWE-77

References (5)

https://github.com/roundcube/roundcubemail/commit/0893e192adf803c7a5a89fafc80278257e1bcf65 [Patch]
https://github.com/roundcube/roundcubemail/commit/e6cc1e121effeaec6d916feb4e019d2828924540 [Patch]
https://github.com/roundcube/roundcubemail/releases/tag/1.6.18 [Release Notes]
https://github.com/roundcube/roundcubemail/releases/tag/1.7.3 [Release Notes]
https://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3 [Vendor Advisory]

Authoritative record: CVE-2026-75007 at cve.org

Vendors: roundcube

Weaknesses: CWE-77

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-75007 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.