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Vendor Workaround
To mitigate this configure a finite max-incoming-payload-size (do not set it to 0/unlimited) on SoupWebsocketConnection. Restrict WebSocket exposure to trusted peers.
Tracking
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Tue, 29 Sep 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in libsoup. When max-incoming-payload-size is unlimited (0), SoupWebsocketConnection could grow its incoming GByteArray based on an attacker-controlled frame length until the length wrapped, causing a heap buffer overflow while reading frame data. | |
| Title | Libsoup: libsoup: heap buffer overflow during websocket receive-buffer growth | |
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| Weaknesses | CWE-125 | |
| CPEs | cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux |
|
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-09-29T17:15:32.062Z
Reserved: 2026-09-29T13:19:17.913Z
Link: CVE-2026-102558
No data.
Status : Awaiting Analysis
Published: 2026-09-29T18:17:08.340
Modified: 2026-09-29T21:29:07.663
Link: CVE-2026-102558
No data.
OpenCVE Enrichment
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