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cpe:2.3:a:dunglas:mercure:*:*:*:*:*:*:*:*part: a version: * update: *
| Vendor | Dunglas (d8b5c368-6a33-57a7-8ce3-05f5d4799d61) |
|---|---|
| Product | Mercure (b9eb3af8-836f-5cd2-8f53-e50948aefd56) |
| Edition | * |
| Language | * |
| Software edition | * |
| Target software | * |
| Target hardware | * |
| Other | * |
Notes
Imported from gcve-enriched-dumps CVE data
PURL mappings
| PURL | Source | Last updated |
|---|---|---|
| No PURL mappings for this CPE yet. | ||
Vulnerability references
| Identifier | cpeApplicability | Submitted | db.gcve.eu details | Rationale |
|---|---|---|---|---|
CVE:CVE-2026-39972 |
vulnerable | 2026-06-08 08:01:17.259161 |
Mercure has a Topic Selector Cache Key Collision
Mercure is a protocol for pushing data updates to web browsers and other HTTP clients in a battery-efficient way. Prior to 0.22.0, a cache key collision vulnerability in TopicSelectorStore allows an attacker to poison the match result cache, potentially causing private updates to be delivered to unauthorized subscribers or blocking delivery to authorized ones. The cache key was constructed by concatenating the topic selector and topic with an underscore separator. Because both topic selectors and topics can contain underscores, two distinct pairs can produce the same key. An attacker who can subscribe to the hub or publish updates with crafted topic names can exploit this to bypass authorization checks on private updates. This vulnerability is fixed in 0.22.0.
Published: 2026-04-09T16:42:22.903Z
Updated: 2026-04-09T18:59:49.306Z |
Imported from gcve-enriched-dumps CVE data |
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