Coder 2.21.0 before 2.29.24, 2.30.0 before 2.34.16, 2.35.0 before 2.36.11, 2.37.0 before 2.37.8, and 2.38.0 before 2.38.4 reads Web Push endpoint responses in webpushSend with io.ReadAll, without a size limit or client timeout. Any authenticated user can register a subscription via POST /api/v2/users/{user}/webpush/subscription pointing to a server returning an endless body, exhausting coderd memory and crashing the API, dashboard, and workspace connections.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Fri, 13 Nov 2026 09:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Coder 2.21.0 before 2.29.24, 2.30.0 before 2.34.16, 2.35.0 before 2.36.11, 2.37.0 before 2.37.8, and 2.38.0 before 2.38.4 reads Web Push endpoint responses in webpushSend with io.ReadAll, without a size limit or client timeout. Any authenticated user can register a subscription via POST /api/v2/users/{user}/webpush/subscription pointing to a server returning an endless body, exhausting coderd memory and crashing the API, dashboard, and workspace connections. | |
| Title | Coder from 2.38.0 before 2.38.4 Memory Exhaustion DoS via Web Push | |
| First Time appeared |
Coder
Coder coder |
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| Weaknesses | CWE-400 | |
| CPEs | cpe:2.3:a:coder:coder:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Coder
Coder coder |
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| References |
| |
| Metrics |
cvssV3_1
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Projects
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MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-11-13T09:35:44.966Z
Reserved: 2026-11-10T21:32:21.765Z
Link: CVE-2026-126405
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-11-13T10:17:45.257
Modified: 2026-11-13T10:17:45.257
Link: CVE-2026-126405
Redhat
No data.
OpenCVE Enrichment
No data.
Weaknesses