Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Roundcube Webmail before 1.5.14 and 1.6.14 is affected, and so is the roundcube/roundcubemail package from 1.7-beta before 1.7-rc5. Unsanitized IMAP SEARCH arguments could allow IMAP injection or a CSRF bypass during mail search, and the source gives few details on what an attacker needs. Upgrade to 1.5.14, 1.6.14, or 1.7-rc5, depending on your branch.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 3.1 | Low | 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N | CNA (mitre) |
- CISA KEV Not listed.
- EPSS 0.0043, the 37th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:25 UTC First seen by agentprime
- 31 Oct 2026, 14:25 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-8jr8-v43g-5c57
- OSV: GHSA-8jr8-v43g-5c57
- nvd.nist.gov/vuln/detail/CVE-2026-35538
- github.com/roundcube/roundcubemail/commit/5fe8a69956a9683a4269f3ad2a68e18deebf8a15
- github.com/roundcube/roundcubemail/commit/7daf5aa9c190ccc75bb31672d8fee9938877fd64
- github.com/roundcube/roundcubemail/commit/b18a8fa8e81571914c0ff55d4e20edb459c6952c
- github.com/roundcube/roundcubemail
- github.com/roundcube/roundcubemail/releases/tag/1.5.14
- github.com/roundcube/roundcubemail/releases/tag/1.6.14
- github.com/roundcube/roundcubemail/releases/tag/1.7-rc5
- roundcube.net/news/2026/03/18/security-updates-1.7-rc5-1.6.14-1.5.14