Answer in brief
CVE-2026-56772 records a Medium severity (CVSS 5.3) vulnerability in NewsBlur < 14.5.0 - Insecure Direct Object Reference in Social Interactions Endpoint. The current sources do not mark it as known exploited. The current feed maps samuelclay/NewsBlur (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 samuelclay/NewsBlur (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| samuelclay/NewsBlurgeneric | >=0 <14.5.0 | 14.5.0 |
Published upstream
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
NewsBlur before 14.5.0 contains a broken access control vulnerability that allows authenticated users to read private notification feeds by supplying arbitrary user_id values to the GET /social/interactions endpoint without ownership verification. Attackers can enumerate user_id values to access another user's follows, replies, and social activity without authorization.
Quoted source text, attributed separately from HOL analysis.