CVE-2026-102556
CVE CVE-2026-102556EUVD EUVD-2026-89031Published 2026-09-29T16:11:50.000ZLast changed 2026-09-29T17:24:13.000ZCVSS 8.6
What the advisory describes
A flaw was found in libsoup. When handling an incoming WebSocket Pong frame, SoupWebsocketConnection emitted the ::pong signal with a GByteArray pointer even though the signal is declared to pass a GBytes. Applications connecting a handler that follows the documented GBytes API can trigger heap corruption or a crash upon receiving a crafted Pong.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Red Hat — Red Hat Enterprise Linux 10
- Red Hat — Red Hat Enterprise Linux 6
- Red Hat — Red Hat Enterprise Linux 7
- Red Hat — Red Hat Enterprise Linux 8
- Red Hat — Red Hat Enterprise Linux 9
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Red Hat — Red Hat Enterprise Linux
Does this concern one of your customers?
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