Retrospective for 2026-09-07, compiled on 27 October 2026. The date identifies the day being analysed; source publication and revision dates are recorded below.
What this advisory changes in your environment
The starting point is CERTFR-2026-AVI-1122, published on 2026-09-07. Its scope includes Roundcube Webmail. Reported consequences are cross-site scripting (XSS), server-side request forgery (SSRF), security control bypass. These statements apply to the advisory’s scope; they do not assign every consequence to every product or CVE.
This case focuses on Roundcube Webmail. Locate that edition in live installations, deployment images and actual dependencies, rather than treating every product from Roundcube as equivalent.
Products and versions to examine
- Reference
- CERTFR-2026-AVI-1122
- Source first published
- 2026-09-07
- Latest source revision available for this day
- 2026-09-07
- Named components
- Roundcube Webmail
- CVE identifiers
- no CVE identifier supplied
| Component | Published condition |
|---|---|
| Roundcube Webmail | 1.6.x : < 1.6.19 |
| Roundcube Webmail | 1.7.x : < 1.7.4 |
For Roundcube Webmail, the published condition is “1.6.x : < 1.6.19”. Compare the version actually loaded with that condition within its own release branch. A fix installed on another edition of Roundcube Webmail does not close this case.
Mechanism and prerequisites
SSRF abuses requests a server is allowed to make. Inspect outbound destinations, metadata access and service secrets; segmentation can reduce impact without repairing the vulnerable request logic.
For CERTFR-2026-AVI-1122, the retained documents do not provide a suitably dated primary CVE record to establish this case’s prerequisites. Required authentication, user interaction and active exploitation therefore remain unestablished here; they are not inferred from Roundcube Webmail or the risk category alone.
Choose the appropriate intervention
- Locate Roundcube Webmail instances, running releases and service owners. Record condition 1.6.x : < 1.6.19 in the ticket alongside reference CERTFR-2026-AVI-1122.
- Compare the installed branch with the vendor’s Roundcube Webmail release notes. Prepare the package for that branch and a dependent-service test, retaining the pre-change state.
- After changing Roundcube Webmail, capture the loaded version again and verify the workflow below. Any exception needs an owner, an exposure-reduction measure and an expiry date.
Verify the fix in a real workflow
Validation scenario to adapt for Roundcube Webmail: On a test instance of Roundcube Webmail, trace a synthetic message from sending to delivery, then check the queue and logs. For webmail, also test sign-in, reading and attachments with an unprivileged account. This is a proposed defensive check, not a claim that testing was performed against third-party systems.
Limit of case CERTFR-2026-AVI-1122: this analysis replaces neither vendor prerequisites nor investigation of your logs. Only documented versions are reproduced; no attack date or victim is invented.
Questions specific to this case
Which condition should be checked for Roundcube Webmail?
Advisory CERTFR-2026-AVI-1122 states: Roundcube Webmail — 1.6.x : < 1.6.19. Check the edition and running release; do not extend the published boundary to branches absent from the advisory.
What is still needed to assess Roundcube Webmail exposure?
For Roundcube Webmail, establish the running version, the path to the component and process permissions. The sources retained for CERTFR-2026-AVI-1122 do not establish every prerequisite or active exploitation.
Sources and related reading
Practical guide : Improve email sender trust and deliverability
Explore the decision addressed in this case
Complete source advisory inventory
The article table may be an extract. These lists contain every affected-system entry and CVE in the specified advisory revision. They are not an inventory of your assets and do not map every CVE to every product.
Official source · CERTFR-2026-AVI-1122
Advisory revision : · Checked on :
Affected systems · 2
Original French wording is retained to avoid ambiguous translations of version conditions.
- Roundcube Webmail versions 1.6.x antérieures à 1.6.19
- Roundcube Webmail versions 1.7.x antérieures à 1.7.4
CVE identifiers · 0
This advisory revision supplies no CVE identifier.