CVE-2026-9818
- Source
- https://cve.org/CVERecord?id=CVE-2026-9818
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-9818.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-9818
- Published
- 2026-05-28T12:16:05.464Z
- Modified
- 2026-07-08T08:13:53.706058674Z
- Severity
-
- 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N CVSS Calculator
- Summary
- Roundcube Local/Private URL Fetch Bypass
- Details
-
Roundcube's HTML sanitization path for message rendering allows loopback, localhost, RFC1918, link-local, and ULA URLs even when remote content loading is disabled. A remote attacker can send an HTML email that causes the victim's browser to issue requests to local or private-network services simply by opening the message preview.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/9xxx/CVE-2026-9818.json", "cna_assigner": "OCD", "cwe_ids": [ "CWE-184" ] }- References
-
- https://github.com/roundcube/roundcubemail/
- https://advisories.orangecyberdefense.com/advisories/163
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/9xxx/CVE-2026-9818.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-9818
- https://github.com/roundcube/roundcubemail/commit/7b52353653a67e6073b97d70eb94047132b78556
- https://github.com/roundcube/roundcubemail/commit/faf867432f51ebbe100382a70a9e3c042415ee1b
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.16
- https://github.com/roundcube/roundcubemail/releases/tag/1.7.1
Affected packages
Git / github.com/roundcube/roundcubemail
Affected ranges
- Type
- GIT
- Repo
- https://github.com/roundcube/roundcubemail
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixed
- Database specific
{ "source": "AFFECTED_FIELD", "extracted_events": [ { "introduced": "0" }, { "fixed": "1.6.16" }, { "introduced": "1.7.0" }, { "fixed": "1.7.1" } ] }