Answer in brief
CVE-2026-127135 records a Medium severity (CVSS 5.3) vulnerability in SOGo before 5.12.13 Sieve Script Injection via Notification Address. The current sources do not mark it as known exploited. The current feed maps Alinto/sogo (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Alinto/sogo (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Alinto/sogogeneric | >=0 <5.12.13 | 5.12.13 |
Published upstream
Nov 12, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 12, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 12, 2026
SOGo before 5.12.13 contains a Sieve script injection vulnerability that allows authenticated users to inject arbitrary Sieve directives by inserting unescaped notification address values into a generated Sieve script. Attackers can embed Sieve redirect or discard statements within the notificationAddress preference to bypass the administrator-configured forwarding-domain constraint and redirect or discard incoming mail.
Quoted source text, attributed separately from HOL analysis.