CVE Explorer
CVE-2026-39880
Remnawave Backend is the backend for the Remnawave proxy and user management solution. Prior to 2.7.5, a glitch in the HWID device registration logic allows an authenticated user to bypass the configured limit for HWID devices and register more devices than expected, allowing them to resell subscriptions and consume excessive traffic. This vulnerability is fixed in 2.7.5.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"backend","vendor":"remnawave","versions":[{"status":"affected","version":"< 2.7.5"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:a6c57256cdcdc96df49134f2ddfa8542273943a226bf1491e694dba097604845 · sha256:122b84bcf5b7a648… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:a6c57256cdcdc96df49134f2ddfa8542273943a226bf1491e694dba097604845 · sha256:122b84bcf5b7a648… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-362","description":"CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:a6c57256cdcdc96df49134f2ddfa8542273943a226bf1491e694dba097604845 · sha256:122b84bcf5b7a648… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/remnawave/backend/security/advisories/GHSA-985p-44h5-v3pq","tags":["x_refsource_CONFIRM"],"url":"https://github.com/remnawave/backend/security/advisories/GHSA-985p-44h5-v3pq"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a6c57256cdcdc96df49134f2ddfa8542273943a226bf1491e694dba097604845 · sha256:122b84bcf5b7a648… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.